Not sure if this has happened to others (I know of myself and another polycade owner where this has happened) but there was an AGS update which causes the C++ Repair window to pop up. Since that has happened anytime we launch AGS or scan for new game (which doesn't complete the scanning process) it takes 10-15 min for the process to finish. It usually takes a min or less. I'm going to do some troubleshooting but wanted to see if others were having a similar issue.
I experienced the same issue on a test laptop that I have AGS install on. Was working as expected, updated the software, 10+ min to launch AGS after closing it.