3ds MAX Crashes during preparing geometry

Corona has all of a sudden stopped working. Crashing Max without any error message when I try to run the interactive renderer or render the scene. I using 3ds MAX 2019, Corona 5 on a Windows 10 system. When I try to use the material editor or slate editor is locks up and I have to kill the session.

Not isolated to one file.

V

If Max is freezing, then you can force a minidump to be generated, and send that in - see https://coronarenderer.freshdesk.com/support/solutions/articles/5000524006-how-to-report-issues-3ds-max#crashes2

I had IT uninstall and reinstall with HOTFIX 2. Seems to be working now.