I had these issues on Windows 7 occasionally. Now on Windows 10 EVERY single time (Cubase 8.0.3 or 8.5 even after a clean install). This fix sadly didn’t help me. However, after updating my GPU drivers to the latest and plugging my eLicenser into a different USB slot my Cubase behaves normally and exits normally. Anyone who still has hanging/crash problems on exit could try this as well 