Ubuntu 18.10, Plex hogging 100% of a CPU-core 24/7 when idle

No matter what I try, PMS goes into a tailspin, even a completely fresh install. I even went and installed Ubuntu 18.04 in an lxc-container under Ubuntu 18.10 and then both the abovementioned Plex 1.14.1.5488 and the 1.15.x preview-version, with no content added to the libraries or anything, and it still did the same thing.

I did notice that there’s a 1.13.10.352 in Ubuntu’s snap-store, which I installed and it seems to be working, so it’s either because it’s a snap-package or because it’s an earlier version. Does anyone have a link to 1.13.10.352 amd64 deb-file, and perhaps 1.14.0-something, so I can test?