Changing tempo problems

Good morning, I work with Cubase Trece Pro, when changing the tempo when I record MIDI to specify the interpretation because the time is too fast for my piano ability, the position bar moves at the same time and the size of the part that I am recording changes. There was For a while this didn’t happen, am I doing something wrong? Any help? thank you

Good morning!
Make sure your main ruler is set to Bars + Beats and that your MIDI Track is set to Musical time base.


As my comment to the provate message was:

My guess is, the Main Ruler is not set to Bars+Beats, but any version of time in the Project widow on your side.