I mainly use Cubase 10.5 since last year, but I wanted to open Cubase 8 for some older projects. It won’t open. The splash screen shows up as normal, it scans some plugins, and after 10-20 seconds just closes/disappears, and that’s it. No error messages, nothing. The same happens with Cubase 5 which I still have installed. It loads, then vanishes. Cubase 10.5 opens fine, just checked. No issues with the usb dongle/license either.
win 10 pro x64