The app does not start. The splash screen shows up, disappears and then the app is gone.
Only when starting with opt+shift and then disabling third party plugins, the app will start.
I have the Red Giant Suite, Universe as well as some Re:VisionFX plugins installed.
The regular Premiere Pro (non beta) starts without problems.
Apple M1 Ultra
MacOS 15.6 (24G84) Sequoia
Premiere Pro (Beta) Version 25.6.0 BETA (Build 17)