I’ve had the same problem. I’ve noticed that SYNC needs to be activated on both decks. I believe the issue is that one of the decks remains as the LEAD, even when you’re adjusting the pitch on the other.
The previous behavior was that, with SYNC activated, the deck adjusting the pitch was considered the LEAD, and the other one would follow.
This is clearly a BUG. I’ve been DJing since this equipment was launched, and this feature used to work perfectly.
I’m uploading a video about this behavior.