Thanks, Mark_Oakly your suggestion got me into C12 for the first time just now but it went back to the same problem on the next launch and I still can’t use C11. I just bought Cubase 12 yesterday, I upgraded from 11 to 12 and I am also having this problem I have read posts dating as far back as June 2022 and still, there seems to be no proper permanent fix from Steinberg. If there is, I would like to be pointed in the right direction because it has rendered every version of Cubase I have useless (Cubase 9.5, 10.5 and 11 are all crashing now). I have missed 1 client’s deadline so far and I hope to get this fixed ASAP as I have a client flying from overseas 6 days from now for a block of sessions. Please point me to any proper solution that works seamlessly for all versions.