ERROR: Trying to write beyond partition on Urbackup server 2.3.7.0

Tried to run assemble on Urbackup server 2.3.7.0 on Centos 7.2. The backups are on btrfs and the output is on ext4.

urbackupsrv assemble -a /backups/EDM-S-DC01/190318-2139_Image_C/Image_C_190318-2139.vhd -a /backups/EDM-S-DC01/190318-2138_Image_SYSVOL/Image_SYSVOL_190318-2138.vhd -o /home/gv0/edm-s-dc01.vhd

and got this

2019-03-19 17:59:17: Sectorsize: 512
2019-03-19 17:59:17: Clustersize: 4096
2019-03-19 17:59:17: ClustersPerMFTNode Offset: 48
2019-03-19 17:59:17: MFTStart: 786432
2019-03-19 17:59:17: Attribute Type: 16 nonresident=0 length=96
2019-03-19 17:59:17: Filename=$MFT
2019-03-19 17:59:17: Attribute Type: 48 nonresident=0 length=104
2019-03-19 17:59:17: Attribute Type: 128 nonresident=1 length=80
2019-03-19 17:59:17: Attribute Type: 16 nonresident=0 length=96
2019-03-19 17:59:17: Filename=$Bitmap
2019-03-19 17:59:17: Attribute Type: 48 nonresident=0 length=104
2019-03-19 17:59:17: Attribute Type: 128 nonresident=1 length=72
2019-03-19 17:59:17: Bitmap size=1621472
2019-03-19 17:59:17: Sectorsize: 512
2019-03-19 17:59:17: Clustersize: 4096
2019-03-19 17:59:17: ClustersPerMFTNode Offset: 48
2019-03-19 17:59:17: MFTStart: 25600
2019-03-19 17:59:17: Attribute Type: 16 nonresident=0 length=96
2019-03-19 17:59:17: Filename=$MFT
2019-03-19 17:59:17: Attribute Type: 48 nonresident=0 length=104
2019-03-19 17:59:17: Attribute Type: 128 nonresident=1 length=72
2019-03-19 17:59:17: Attribute Type: 16 nonresident=0 length=96
2019-03-19 17:59:17: Filename=$Bitmap
2019-03-19 17:59:17: Attribute Type: 48 nonresident=0 length=104
2019-03-19 17:59:17: Attribute Type: 128 nonresident=1 length=72
2019-03-19 17:59:17: Bitmap size=9600
2019-03-19 17:59:17: Writing /backups/EDM-S-DC01/190318-2139_Image_C/Image_C_190318-2139.vhd into output VHD...
2019-03-19 17:59:17: Optimized by only writing used NTFS sectors...
2019-03-19 17:59:17: ERROR: Trying to write beyond partition

I tried with few more images of C: drive and got the same result. I even tried to assemble only the C image and it fails.

Any help will be highly appreciated.