If it wasn’t clear, I’m trying to check if this is an actual bug and not just your preferences acting up, which is a common cause of issues like this. What a strange way to react.
Musikmesse was just one month after the last major Cubase maintenance update. The whole purpose of trade fairs like this is to show off products and innovations. Again, 9.5.20 had just been released, so even if this was the right place for proudly showcasing bugfix updates, they probably wouldn’t be showing a super early alpha version of Cubase 9.5.30.