P: Error Message: Failed to initialize pixel-mask storage (Windows)
Since updating to release 12.0 I have had 2 problems. When launching Lightroom Classic immediately after opening Windows I sometimes get the following message.

If I click OK and try launching Lightroom again it opens OK.
After doing various edits on a number of images and moving to a new image Lightroom gets stuck "Loading" an image. I close Lightroom, but it won't reopen and Windows won't close and has to be crashed.
