Same issue for me!
I can’t access the server settings at all as soon as I upgrade to
Server Version#: 1.23.0.4459
or
Server Version#: 1.23.0.4438
Last working version for me is
Server Version#:1.22.3.4392.
I tried the newer versions, which fail. The error is reproducable, but I can roll back every time to 1.22.3.4392 and everything’s working fine again. Been running Plex on this particular machine for way over 3 years without any issues. (Plex is running in a FreeBSD based jail on a FreeNAS [now TrueNAS] system).
There is also no difference if I access the server via plex.tv and the “Launch” Button or if I go locally on http://[local ip]:32400/web/
I also tried the plex media player application for windows, but same result there, Server settings are not accessible.
The library and playback, however, works without any issues. I just cant access the settings, which eventually renders the system partly usless.
I disabled auto updates now and waiting for things to change.
