You need to tell BiaB where the RT's are. Did you do that?

Options > Preferences > RealTracks > "Use Custom Folder location for RealTracks" and specify the external drive.


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.