P: Updated to 12.1 & seeing "Failed to initialize pixel-mask storage' error after relaunch (Win)

It seems Lightroom wasn't closed properly and so there's remaining a .lock file besides the catalog file.

If Lightroom is running it creates a .lock file for the opened catalog next to the approriate .lrcat file.

On LRs regulary shut down this file was deleted. If LR crashes the .lock file remains in the appropriate folder.

In this case the .lock file must be deleted manually.

More informations about this, you'll find here: 

The Lightroom catalog cannot be opened because another application already has it opened - lrcat.loc...

Another point could be that Lifghtroom doesn't have full access rights to the folder with the catalog file. Please check if LR does have full right to the appropriate folder.

Hello. I keep getting this message "Failed to create lock file inside the folder: McCarthy 2022.lrcat-data.

The process cannot access the folder because it is being used by another process." when trying to open any of my cataloges. It's so frustrating! Anyone know what I can do to fix this?

Thanks,

Hannah