I refer you to this thread to report what I believe to be a BUG related to Cubase 11 and 12 as well as Groove agent.
It would be laborious for me to repeat everything discussed in this thread, so this is the quickest way for me to report this unpleasant situation. The video speaks for itself.
There’s no need or advantage to crossposting, and your linked topic is quite active, so I’ll close this one. It will remain visible.