Thanks for the suggestion to roll back to server version 1.40. I was having an issue with a new HDHomeRun Flex tuner and thought is was a setup issue. I installed it in Plex and was able to open the Live TV, but then it would stall out. I checked the HD Homerun app and everything was working correctly. I was not able to use the Ruku app, the Android TV app or the Ios app. I kept getting a timeout error or 'Not available". Even recording wasn’t working correctly.
I rolled back to 1.40 on the Win10 server and everything has been good since then on all viewing platforms.
Thanks again for the suggestion. I hope the Plex guys will address this issue soon.