Same here, the Plex media server is stopping itself after a few hours on the last two updates here. I was on 1.15.3.??? and that was doing it and I’ve just upgraded to 1.15.4.919 in the hopes it fixed this but seeing the same here too.
After a while the server stops responding and when I check on the Synology services list Plex is off. Checking it back on restarts the server but it always stops itself after a few hours.
