Constant reindexing on the client

W10 (2.5.23) client with file backup setup for the whole drive.
Server is 2.5.31

Everytime file backup is executed (including incremental onces), full reindexing on the client is happening which takes a lot of time and pins client with disk load. This didn’t happen before to the same client. Issue appeared without any changes to components of Urbackup. Perhaps something was updated on a Windows side: hard to tell.

In logs of the client:

2024-08-16 00:10:26: ERROR: Unknown error for Volume 'd:' - update err=1179
2024-08-16 00:46:51: WARNING: Info not found at 'd:' - reindexing

I’ve googled a bit, but havent found anything similar on the forums.

I’m also getting these errors in logs, but not sure if the are related since timestamps are quiet apart:

2024-08-15 13:12:17: WARNING: Parent of directory with FRN 281474977419969 (Name "00010000000AD2C144866C95") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 281474977419969 (Name "00010000000AD2C144866C95") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 281474977419970 (Name "00010000000AD2C22CD2FED2") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 281474977419970 (Name "00010000000AD2C22CD2FED2") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 281474977419968 (Name "00010000000AD2C00DF7159F") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 281474977419968 (Name "00010000000AD2C00DF7159F") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 281474977419972 (Name "00010000000AD2C46854CA2C") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 281474977419972 (Name "00010000000AD2C46854CA2C") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 281474977419971 (Name "00010000000AD2C37C54D7B7") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 281474977419971 (Name "00010000000AD2C37C54D7B7") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 18577348462931297 (Name "0042000000006D616E202725") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 18577348462931297 (Name "0042000000006D616E202725") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 1970324837640516 (Name "00070000000A294476F2127A") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 1970324837640516 (Name "00070000000A294476F2127A") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 844424930797915 (Name "00030000000A295B36A796B5") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 844424930797915 (Name "00030000000A295B36A796B5") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 844424930797902 (Name "00030000000A294E19FF496E") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 844424930797902 (Name "00030000000A294E19FF496E") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 281474977419567 (Name "00010000000AD12F665B21DB") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 281474977419567 (Name "00010000000AD12F665B21DB") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 844424930797918 (Name "00030000000A295E6E8119E3") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 844424930797918 (Name "00030000000A295E6E8119E3") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 844424930797891 (Name "00030000000A29430E5A5453") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: Parent of directory with FRN 844424930797891 (Name "00030000000A29430E5A5453") with FRN 281474976710685 not found. Searching via MFT as fallback.
2024-08-15 13:12:18: WARNING: Parent not found. Was probably deleted.
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous=FULL" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous=FULL]: Safety level may not be changed inside a transaction
2024-08-15 13:12:18: WARNING: SQLite: Safety level may not be changed inside a transaction in "PRAGMA synchronous = 1" errorcode: 1
2024-08-15 13:12:18: ERROR: Error preparing Query [PRAGMA synchronous = 1]: Safety level may not be changed inside a transaction

Backups are created normally and no issues with them. Just the constant reindexing is the issue.

Anything I can do to fix it? Thank you.