First of all: Thank you for the warm welcome!!
This is by far the kindest audio forum I know! No RTFM and always keen to support each other. Very mature!
@ Noel: No, that doesn´t help. Anyway thanks for the hint!
@ Matt: I´m on BIAB 2026 (1213) and it occurs on every STYLE. I assume I ticked somethin wrong in the preferences. I worked with BIAB for sevral years, but only scratched the surface, but now I decided to dive a little bit deeper.
@ Shlind and Matt: Where can I find the "Output chords to Channel" tick box?

Thanks
Michael