warning messages – Internal self-test errors

I keep running into internal self-test errors, e.g. if I use Free-form input and type
“= caffeine molecule” and then click on the + to show all results.
The scrollbar starts vibrating and the notebook is completely stuck. Sometimes it throws an internal self-test error with the file DXGraphics.cpp.
I’m running Mathematica 12.3 on Windows 10.