I'm glad it's working now! We would love to reproduce fix the problem if you see it again.
Djanja I wish the ability to copy keys with Control and Shift clamped was available in Offset mode like in 3.8.99. It was convenient.
Agreed! We've brought that back in 4.2.33-beta. It makes Offset forget the original keys though.
Instead of working with Offset on, it can be convenient to hold alt to temporarily use Offset. Then you can more easily use ctrl+shift+drag to duplicate keys and other functions, without needing to toggle Offset on and off.