I can't open files after restarting machine with macOS Catalina. running the latest Mac OS and the latest Rhino

I can start the program, without a file, but it looks weird and is very slow. I have a fast machine, so that’s not the problem.

Model Name: MacBook Pro
Model Identifier: MacBookPro15,1
Processor Name: 8-Core Intel Core i9
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 8
L2 Cache (per Core): 256 KB
L3 Cache: 16 MB
Hyper-Threading Technology: Enabled
Memory: 32 GB

Hi Max - could you please run the Rhino SystemInfo command and copy-paste the result here?
Also, did this used to work on this machine, and, if so, what has changed?