P: Crash on launch: Bucket ID 7846107

[snoitanb]

LR won't start up.  Tried updating to V12: Same result.  Downgraded to V11.0:  Same result.  Updated Photoshop (thinking there might have been a shared resource), then update V12 again: same result.

Crash reports sent.

HELP!!  This has shut down my photography.

[Rikk Flohr: Photography]

I've cross-linked your crash reports (thank you for submitting) to an active bug we have under investigation. 

[melvinb13045623]

Hi, I upgraded to the latest LR classic version in my Mac and every time I open the masking tool, it keeps on crashing. Is this a known issue that need to be fix?

12.0.1

[Jao vdL]

I have seen a few users here with this problem but it is certainly not widespread. What are the specs on your machine? Show what you get when you do System Info from the help menu.