Unable to view Grid in Lightroom Classic v 12.0.1

[Stephen272114160g1k]

While working in LrC v12.0.1, I suddenly became unable to move from Loupe to Grid view.  I am using a Macbook Air, running MacOS Monterey, v12.6.1.  Is this an incompatibility issue, a known bug, or have I done something to freeze Grid view?

[kglad]

<moved from using the community >

[TheDigitalDog · Accepted solution]

Try resetting your Lightroom preferences:
https://helpx.adobe.com/lightroom-classic/help/setting-preferences-lightroom.html
Also see: https://community.adobe.com/t5/lightroom-classic-discussions/important-steps-for-manually-resetting-...

Quit Lightroom Classic.
macOS: Press and hold the Shift + Option keys.
Windows: Press and hold the Shift + Alt keys.
While holding down the keys, launch Lightroom Classic.
When asked, select "Yes". 

[Stephen272114160g1k]

Thank you. That worked!  Unfortunately, the masking function in Develop mod no longer responds. 

[Stephen272114160g1k]

Please disregard the latest post. I logged out and back in, and all seems to be working. Thanks again.