I know this topic has come up many Cubase versions ago but it recently started happening to me since switching to Mac Silicon/M1 on Cubase 12 Pro.
When using the Pitch Shift audio process I can’t transpose down (downward arrow is greyed out and I can’t type negative values) whenever Time Correction is enabled. Doesn’t matter what algorithm. What’s strange is I can pitch down -200 cent, and the Envelope also works normally pitching audio down with Time Correction enabled.
If I remember correctly it worked at first on the M1 Mac but the last few weeks the problem won’t go away.
Cubase 12.0.70
macOS Monterey 12.7.2