I’m having similar issues. Can’t start Dorico 4 at all. 3.5 is still running fine. Can’t find a eucon65 file anywhere in my library, and my Halion Sonic SE is up to date.
Files attached! Good luck!
Chewy
VST Engine Crashes Today Dorico 4.zip (167.1 KB)
Activation Manager.zip (25.1 KB)
Dorico 4 AudioEngine.zip (19.1 KB)
Dorico4 Force Quit Report.pdf (3.4 MB)