P: Spot Removal Cursor Not Visible

iMac at OS10.15.3 and LR Classic at 9.2 Develop Module: The spot removal cursor disappears when it is positioned on the actual image meaning that I cannot see where the spot removal is going to take place on the image. Resetting prefs, graphics card off or on, uninstall/reinstall does not change the behavior. The spot removal tool works perfectly on separate test catalogs built using 9.1 and 8.21. Adobe Support has done 3 remote sessions and not fixed the problem. I think this is a bug in 9.2. Does anyone have a solution?