Record Button does nothing

Hi there,
just purchased Cubase pro and set it up with my SL 88 grand and a UR 22 mkII.
When i load a VST, i can actually use my Controller to play with it. But when i push the recordbutton, simply nothing happens.
I tried everything i found on the internet. The program clearly picks up the information, because i can play with the controller… but the button does nothing, the barslider does not move either.
Someone has an idea? Thanks and with kind regards

Welcome ! :slightly_smiling_face:

What ‘recordbutton’ is involved, here ? The one in the track header or the one in the transport bar ? For something to happen, recording wise, both should be activated (in this case, the track header gets a red background).