Plex App for Mac is not visible

Server Version#:
Player Version#:1.28.0.1681-cc6e807c
OS#: macOS Big Sur 11.2.1

I have plex mac app and have been using it for long time. Suddenly it is not visible anymore. My system shows that its running but there is no visible window to see it.
You can see below that if app is not open then it should say “No Available Window”

Have you tried killing the app from Activity Monitor.? Then restart normally. Do you use multiple monitors? The window may be on a different monitor or desktop.

Did you ever solve this? I have the same problem. Mac OSX High Sierra. I ran the Plex client for a long time and then one day the client would seem to start but no window is visible. I can’t seem to get a window to show.

I can run the web client, but seems strange the desktop client won’t show.

Please follow up in here: App starting up to blank screen, white screen, or black screen?