YiddySchlomo

As stated by @Dreytac in January, switching appdata from user to cache doesn't seem to be part of the solution to this exact issue. I can attest as I never actually made this change and have yet to have a crash similar to this for more than 6 months. Are you certain you are seeing the exact same symptoms we have been seeing, even after switching to exclusive shares?

I wanted to come back and update this thread. Again, I was having the EXACT same issue as OP, and like OP I made the change to Exclusive Shares. I made the change on 1/23 and have been up since without crashing. I definitely would have had a crash given the frequency for almost a year. Clearly there is something wrong with Unraid's FuseFS implementation as previously suspected. Luckily there is a workaround, and hopefully this helps anyone having this same issue in the future.

I have been pulling my hair out for nearly a year with the exact same symptoms as OP for nearly a year. It started after completely upgrading all hardware except for hard drives and raid cards. I assumed when it started crashing this was either a memory issue or a cpu issue as my cooling solution could only handle my 11700k 99% of the time. My crashes only seem to happen overnight. But after upgrading the cooler and running a long memtest with no errors, I continue to have seemingly random crashes every 24-120 hours. I will make the change to Exclusive Shares today and see if this resolves the issue. By "change /mnt/user/appdata to /mnt/cache/appdata" do you mean manually editing all my docker containers to point to that share, or is there a way to do it systemwide?