Zoom, Drag, and Rotate work fine for me on Windows 10. (EDIT: I am now able to see the problem…see below)
Maybe there’s an issue with GPUs - Since your changes involved OpenGL - some GPUs may need to be set to use or not use it?
EDIT: Just encountered the issue on Win 10. I can only encounter it (so far) when opening a file. It does not matter if the file was created in v12 or a previous release - opening it leaves me in a state where I cannot flip in dimension…it just pans. I can rotate and I can zoom - but zooming is with a very large factor.
If I start from scratch after opening the program, everything works for me. However, if I start a new design AFTER having had the problem (by opening an existing file), the new file fails as well.