So the problem is back.
╰─λ sudo timeshift --create --comments "test rsync 3.2.4" --tags M
[sudo] hasło użytkownika zawier:
/dev/sda2 is mounted at: /run/timeshift/backup, options: rw,relatime
------------------------------------------------------------------------------
Creating new snapshot...(RSYNC)
Saving to device: /dev/sda2, mounted at path: /run/timeshift/backup
Linking from snapshot: 2022-05-06_20-33-22
Synching files with rsync...
E: rsync returned an error
E: Failed to create new snapshot
Failed to create snapshot
------------------------------------------------------------------------------
Removing snapshots (incomplete):
------------------------------------------------------------------------------
Removing '2022-05-06_20-48-02'...
Removed '2022-05-06_20-48-02'
------------------------------------------------------------------------------
Temporary solution should by appied in that case. Do you think that problem would be solved somehow at future? Rsync work ok as they said but not with that timeshift version…