File backups hanging at "Started loading files"

About a week ago, all of my file backups started hanging up. Image backups work. I have rebuilt the database, fileindex, upgraded everything, including my ubuntu version. Nothing is logged after “Started loading files…”

Here is a log excerpt:

2023-12-22 14:26:36: msg=START BACKUP FULL
2023-12-22 14:26:36: Starting unscheduled full file backup…
2023-12-22 14:26:36: Noel-hpenvy: Connecting for filelist…
2023-12-22 14:26:36: Noel-hpenvy: Waiting for filelist
2023-12-22 14:26:36: Noel-hpenvy: Connecting for filelist (async)…
2023-12-22 14:27:17: Last full index unfinished. Performing incremental (virtual full) indexing…
2023-12-22 14:27:17: Selected no components to backup
2023-12-22 14:27:17: WARNING: Restarting shadow copy of C:\ because it was started by this server
2023-12-22 14:27:17: Scanning for changed hard links on volume of "C:"…
2023-12-22 14:27:17: Indexing of “C” done. 25 filesystem lookups 79785 db lookups and 20 db updates
2023-12-22 14:27:17: WARNING: Restarting shadow copy of D:\ because it was started by this server
2023-12-22 14:27:17: Scanning for changed hard links on volume of "D:"…
2023-12-22 14:27:17: Indexing of “D” done. 1 filesystem lookups 132 db lookups and 0 db updates
2023-12-22 14:27:17: Noel-hpenvy: Doing backup without hashed transfer…
2023-12-22 14:27:17: Noel-hpenvy: Loading file list…
2023-12-22 14:27:17: Flushing FileClient…
2023-12-22 14:27:18: Flushing FileClient…
2023-12-22 14:27:18: Flushing FileClient…
2023-12-22 14:27:18: Noel-hpenvy: Started loading files…