LRC doesn't open

[Luiz Paulo28462407grma]

My LRC 12.2.1 doesn't open

iOS Ventura 13.2.1

This is the second time within. less than one month. It was running smoothly, but, yesterday, after installing Nik Collection last version plug-ins, the app simply is not working. It starts popping-up and suddenly stops and doesn't open. I uninstalled and reinstalled it again, but didn't work

[dj_paige]

Did you try un-installing Nik Collection?

Please give us more information: "It starts popping up ..." what do you mean ... be specific ... provide details ... how far does it get ...

[Luiz Paulo28462407grma]

I mean: it blinks once and stops immediately and doesn't open.

I also unisntalled Nik collection and nothing happened

[AxelMatt]

In a first step try is to reset the preferences to the default settings.

Reset Procedure:

• Close Lightroom.
• Windows: Hold down [Alt]+[Shift] while restarting Lightroom.
• Mac: Hold down [Opt]+[Shift] while restarting Lightroom.
• Overwrite the Preferences when prompted by the dialog.
• Close Lightroom.
• Restart Lightroom.

It's recommended to backup your preferences before you reset the preferences to the default settings: 

https://helpx.adobe.com/lightroom-classic/kb/preference-file-and-other-file-locations.html

If his doesn't help provide also a copy of your 'System Info'. This can be get from the LrC Help > System Info menu item. There's a copy button in the System Info dialog. Press this button and paste the info into your next forum post.

And give us more details as @dj_paige wrote

[Luiz Paulo28462407grma]

I did that and nothing!

[TheDigitalDog]

Try logging into another Mac user account (you should make a new one); any better? 
Try starting up in Safe mode (hold down Shift Key when booting*), any better? 
* How to start your M1 Mac in Safe Mode
On your Mac, choose Apple menu () > Shut Down.
After your Mac shuts down, wait 10 seconds.
Press and hold the power button until the startup disks and Options appear.
Press and hold the Shift key, then click Continue in Safe Mode.

[Luiz Paulo28462407grma]

Did that two weeks ago and it worked. But after creating a new user and I had to reset everything, I mean, e-mail, and all other apps. My fest is that the problem keep on coming back