[markkanof]

Could you elaborate on the data loss bugs. I recently had to restore from an Arq 6 based backup and ran into some issues where it seemed like if the screen saver started during the restore it would just stop restoring but would not give any error. I was able to get all my data back by disabling the screen saver, but seemed very strange.

[chrislund]

Not trying to peddle hearsay, but with just some cursory Googling I can't pull up any citations. IIRC there were several complaints of data loss in the ArqBackup subreddit [0], I think mostly around botched Arq 5 imports (Arq 6 uses a new format and perhaps data was lost in conversions gone awry).

Michael Tsai has a good summary of the situation that he wrote when Arq 6 was just out, and echos my recollection of issues with data loss [1].

[0] https://old.reddit.com/r/Arqbackup/

[1] https://mjtsai.com/blog/2020/04/13/arq-6/