Topic: Logic pro x recognizes but won't record with ADI-2 pro FS

I'm a complete newbie with AD/DA converters.
I just got an ADI-2 pro fs and am using API 512v pre-amp with nice condenser mic for vocals.
I use Logic Pro X (updated) for my DAW
running MAC 10.15.6 catalina

problem: i can't get Logic to work with the ADi-2 even though the ADI is the input/output device. have tried all different channel inputs
Logic works fine with my UA apollo twin, same mic.

What am i doing wrong?
thanks in advance!