Latest LR Classic just beachballs when I try to quit after moving from MacBook Air to MacBook Pro.

[jamiez47741011]

Driving me crazy, I have to force quit latest LR Classic 5.2 when I try to quit the program it just beachballs.  Until then it works as normal.

[TheDigitalDog]

Try resetting your Lightroom preferences:
https://helpx.adobe.com/lightroom-classic/help/setting-preferences-lightroom.html

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