2022b Beta is suddenly unlaunchable on macOS M1

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cr
cr on 27 Nov 2022
Edited: cr on 1 Dec 2022
Today my matlab window became unresponsive. Not sure exactly when, but I had data import window and a plot open while connected to an external display. After a while I disconnected the monitor and later found matlab 2022b apple silicon beta unresponsive. After force quitting I found Matlab unlaunchable. When I click on the icon in launchbar it kind of initiates launch process and quits in an instant. I tried rebooting, removing caches in Mathworks and com.mathworks folder, removing R2022b in application support folder in vain. Console shows the following two lines when I try to launch
com.apple.xpc.launchd[1]: Coalition Cache Hit: app<application.com.mathworks.matlab.59194680.59206929(501)> [984]
com.apple.xpc.launchd[1] (application.com.mathworks.matlab.59194680.59206929[893]): Service exited with abnormal code: 1
Any idea what's wrong and how to fix.
Thanks.
  2 Comments
cr
cr on 1 Dec 2022
Edited: cr on 1 Dec 2022
I don't have regular R2022b installed (I doubt if I would even if I had it due to performance issues running over Rosetta). My 22b-beta fumbled and nothing like removing caches/app support folders worked. I restored the app from timemachine and it started working again. This worked despite the .app folder being seemingly pristine.

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