Same issue here. Horrific on behalf of Plex - this issue has now been occurring across multiple version of the PMS for the majority of people running Mojave and there’s been little move to fix it or even notify people that this is a known error. I went through so many attempts at wiping and reinstalling PMS and ended up just not using Plex for a month or two until I finally came across this thread and posts from Nibbles, similar as the reddit post above. Following these steps and installing 1.29 appears to have resolved the issue. Server settings are unavailable after last update. MacOS - #50 by nibbles
Please Plex fix this or at least inform customers who are using Mojave. Current releases do Not Support Mojave and shouldn’t be advertised as they do.
