Syncronization stuck with activity at ~30kbps, *** PIECE 0 FAILED HASH CHECK

[Kworr]

Hello.

This happens to me for some time already. I'm primarily using Resilio Sync on FreeBSD, but right now I'm seeing this issue on Linux (Debian).

1. Adding new peer (empty) to replicate via encrypted key (no read access).
2. Data starts flowing.
3. Error happens, log line looks like:
[20240918 10:11:15.537] TF[5C76:DB6C] [0x000075a70c73e130][/path/to/share/ENCODEDHASHNAME]: *** PIECE 0 FAILED HASH CHECK, 547CFFA9B1B3CAA1CC40A30331A19258A6D87C19 != 0000000000000000000000000000000000000000
4. Sync stuck, no new files will be loaded to that peer.

Other end gets this in it's logs:
[20240918 13:21:55.567] PC[0x000026bd5c034290][0x000026bd5fa17800] got bad piece 0

Also it looks like new peer tries to send a zero-sized file to the old peer. It's pending and can't be downloaded from new peer.

Thanks in advance.