RStudio 1.3.1093 hangs repeatedly in macOS Big Sur 11.0.1

I'm experiencing repeated hangs while executed established code (that worked well before upgrading both RStudio and macOS). Now it will load and execute code but then change.

By hang, I mean after executing various chunks of code (doesn't seem to happen with any particular chunk), the IDE will quit responding. macOS Force Quit doesn't show that the app is not responding and I can move the IDE window around just fine. I just can't do anything else within the IDE. I can't click to different tabs, can't even enter new commands in the console. Nothing responds.

This has occurred about 5 times in a row, each time after executing different code chunks, but always after seemingly loading fine and executing at least one code chunk without difficulty.

I haven't been able to find anything similar.

Any thoughts or suggestions?

Thanks.

Take care,
Jeff