I have been running into an issue when opening ArcGIS Pro for the past few months and have found no solution. Every time I open a map (doesn't matter what it is) it will remain on the "Loading Map..." screen until I force quit the program. As a work around, I have opened a second window of Pro and have had no issues with being able to access and edit maps from there. I have tried to uninstall and reinstall ArcGIS Pro as well as having kept the software up-to-date, but nothing has worked thus far. Any insight is greatly appreciated!