Pyramid - USB Midi Out

Hello dear Squarp community!
I have a question about my Pyramid.
When I use the sequencer’s USB port to control the Halion sampler (e.g. for a drum set) in Cubase 10, everything works fine on midi channel 1. However, as soon as I want to play a second Halion instrument on channel 2, it still only controls channel 1. What am I doing wrong? What have I not considered?

Active track still ch1

Hold track + press track2