Lightroom Classic won't relaunch after update to 12.2

[LewisFrancis]

Hi all,

After runninig the Lightroom Classic 12.2 update on Monterey 12.6.3 M1 MacBook Pro I can only run the app by forcing it at launch to run with the default settings. Once I get it running, all is well, albeit with the default settings.

Launches as expected in a newly created admin account. 

I've tried all the steps listed on the troubleshooting document, including running the permissions repair script and First Aid. Anything else I should try before doing a clean install?

Thanks!

[GoldingD]

 I can only run the app by forcing it at launch to run with the default settings.

Please walk me thru that. I am not familiar with what you are referring to.

[LewisFrancis]

Launching Lightroom Classic while holding down SHIFT+OPTION/ALT will present a dialog allowing you the option to skip the attempt to load your prefs and revert to the default settings. 

[GoldingD]

Ok, so you are attempting to rest/replace a corrupt preference file. As documented/shown in the following:

https://helpx.adobe.com/lightroom-classic/help/setting-preferences-lightroom.html

Now are you stating that doing so works for just one use of LrC, then fails again after closing LrC? 

But LrC works if you are running your MAC using your Admin account?

[LewisFrancis]

That's exactly it, it's as if Adobe lacks the proper permissions to read or write to the prefs file. I haven't actually tried removing the prefs file -- that'll be my next test.

LrC opens as expected in a different admin user account that I created to troubleshoot the issue, so the problem is localized to my prersonal user admin account.

[LewisFrancis]

In my case, LR stalls on the opening screen while trying to load my prefs.

[TheDigitalDog]

So here's the tough part. Since it doesn't crash as a new user, there is a conflict with something in the original (Admin?) user that is making it crash. The hard part is figuring out what that is. The first task is to disable all auto log in items in Users and Groups>Login Items in your System preferences (System Settings in Ventura). You can make a screen capture or jot down what each item is, disable, restart and try again. If it doesn't crash, you can add one or more items, restart and try again. At some point, you may find which item is at issue. It isn't easy but that's really the fix unless you do a clean install of the OS which might be more work. 
The bottom line is, that something in your user account is conflicting with the Adobe software. Gotta find out what that item is. 

[GoldingD]

Perhaps see:

https://helpx.adobe.com/x-productkb/global/troubleshoot-unexpected-behavior-user-account.html

[LewisFrancis]

Thanks for the link, that's a far more complete resource than the one I found, though it lacks the permissions settings script for some odd reason.

Sadly, nothing there helped, either, but the operation for resetting ownership via sudo chown -R username :staff ~/Library with my short username swapped for "username" results in an Operation not permitted error, so I'm checking with our IT partner to see if our Antivirus platform is getting in the way. 

[LewisFrancis · Accepted solution]

OK, found the apparent culprit -- the MIDI2LR.lrplugin is removed from the LrC's Modules folder the app now launches as expected. Kicking myself for not trying this first. Will contact the author and let them know there may be issues with the 12.2 release. 

Thanks for all your help -- it is much appreciated!

[LewisFrancis]

PS: Reinstalling MIDI2LR.lrplugin restores the ability to use this very helpful utility. 

[Πανος30444805gizx]

thanks for the info! did you install midi2lr 5.4.0.0 or older version?