The Plex Preview app has started to crash on every start up and won’t open anymore. Is there a plan to release an updated build soon?
Are you referring to the “new experience” preview or the old “regular” Test Flight beta?
The new experience preview
It can occur where you need to power cycle the ATV from the power source not remote. Also a setting to remember is on the Plex app for ATV.
Settings/ Advanced/ Reset Cache.
Has your Plex Server Machine had a power cycle?
If that does not work, from Testflight select another previous version and install, then return to latest and Re install.
Curiosity wise, which versions:
ATV Version
Plex Media Server Version:
Model ATV:
Testflight Version of New Experience:
Is there a Error displayed?
Do you have other devices connected to your server that work? Example: iPad or Plex for Mac or Windows, Mobile Phone?
That has happened to me. Uninstalling and reinstalling from Test Flight solved it.