Do you have the original intrface.bbw? (i.e. did you rename it or delete it). If you renamed it, try restoring it (with BiaB closed) and start BiaB again. That was the action I had to take.

Let us know,
Trev


BIAB & RB2026 Win.(Audiophile), Windows 10 Pro & Windows 11, Cakewalk Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Session Keys Grand S & Electric R, Kontakt, Focusrite 18i20, KetronSD2, NS40M, Pioneer Active Monitors.