I have the same problem. I bought BiaB for mac yesterday and I can't load tracks into LogicPro.

Mac mini 2020 with M1 chip and 16 GB RAM
Mac OS version: Ventura 13.4 (22F66)
Logic Pro version: 10.7.8
BiaB release: Release 2023 (705)
Band-in-a-Box DAW AU Plugin.component version: 5.5.2

I have a successful installation ov BiaB.

Thanks,

Pierre