kratosmike

Yes, the problem was the Plex Docker container, not only from Plex themselves but also from Linux server and Binhex. There seems to be some memory leak that grabs all the memory within seconds, after the Plex maintenance starts or when someone streams a large movie. The solution for me that is working perfectly is by putting Plex in a VM on Ubuntu and passing through the GPU + using Unraid mount tags.
 
In short any Plex Docker causes my system Minis Forum NAB9 to crash.