csendre

This seems to be the solution. Survived several recordings/transcodes now and all is good. Thank you!

Thanks, I'll give this a try

Not sure what you mean. I have Plex's /transcode/ folder mapped to /tmp/ in the docker template, pretty much that's it. Is there something else I could do to make sure everything is fine?

No, this is not the case. I have 32GB of RAM and even when Plex is using it, total usage never goes above 50%. Also, I have been using this setup for almost 2 years and never had an issue until the SSD was added. There should be plenty of space for a lock file. Could this be a memory allocation issue with UD? Another question; if the lock file is already created when Plex is starting to use additional RAM, can this be wiped out? I would presume that it would be write protected from other applications.

I added a 1TB SSD recently for VM images and UD keeps hanging/crashing on occasion ever since. Here is what I see on the main page When I go to settings, I have this warning: When I reboot my server, everything works fine for a while. Not sure yet what causes the crash, but I suspect it happens when Plex docker records a live TV channel for which I use RAM (/tmp). However, I have been doing this for almost 2 years now with no issues and the only thing that changed was the addition ofd the SSD. Besides that, I have 2 SMB shares with UD, never had an issue with those. Any idea what could be happening?

Almost 2 tears later you most likely solved this, but just in case you, or anyone else needs it, I uploaded a docker template that works for me. Here is the link: https://github.com/csendre/NextPVR

I finally managed to get Kodi database working on MariaDB docker as well, but my case was different than what Giorgio reported. It turns out that the "mistake" I made was creating a database named kodi (similar to what you would do with Nextcloud or anything else) and then created the user kodi and granted access to this. It turned out Kodi can not handle this structure, it needs to create its databases for music and videos on top level .... So as soon as I created a kodi user with top level access to the database, everything started working. Hope this helps someone else with the same problem.

Could you please provide detailed command line instructions for this? I am slowly pulling my hair out with this;

Just in case anyone is still having issues with this, font and size selection in Firefox settings took care of it for me. Under Monospace, I changed the font to Arial from the default Courier New and also changed the size from 13 to 14. Hope it helps.