Not sure if it is technically a "bug" but it is something that could be improved in my opinion. When pressing the circle button for "PZB Wachsam" (acknowledge), it takes a while before the actual lever in the cockpit is moved and the buzzer sound can be heard. It looks like, before acknowledging the PZB, the system first pushes the sifa pedal. This leads to some delay, so it may be too late acknowleding. It is disturbing to hear the sound only a second or so after pressing the button. Thanks.
Do you have a keyboard you can hook up, even a Bluetooth one, and press Q, I do that sometimes on my XB1X; it registers faster.
Unfortunately not. What I have noticed is that, the acknowledge animation is also delayed, i.e. the movement of the switch in the cab. So I could theoretically use that switch in the cab instead, but it is hard to grasp sometimes in the heat of PZB action...
That is a bit odd. In my case, I found the controller reacted slower, and yes, I agree the button in-cab with PZB can be a bit annoying to use.