I'm using ArcMap 10.7.1 on my desktop computer and I am having multiple problems. First, in order to update any changes made in data view, I must click on the map with the cursor. This problem occurs when adding shapefiles, in editor mode, and when zooming in and out. Additionally, when I am in layout view, I can insert things such as North arrows and Legends, but I does not show up on the screen until after I have sent it as a PDF. What is the issue and how can I resolve it.
I'm unaware of nay ArcMap 10.7.1 issue similar to the one you describe above. Can you contact Esri Support? They are better equipped to handle troubleshooting steps and gather bug data. They can be contacted at https://support.esri.com/en/contact-tech-support.