Thank you all. Return to factory settings did the trick.
Maybe no use to ask what happened, software can be tricky.
What counts is that BiaB is now running smooth again.


“Musicians”: UltraPak 2025
DAW: Studio One Pro +
"Instruments": VSTs and REs
Notation: Notion 6
Interface: NI Komplete Audio 6
Mic: RØDE NT1-A
Controller: Panorama P6/KAWAI VPC1/Atom
OS: Win 10 64 Pro