Hmmm this is very weird, sorry to hear that. Are the Bela capes connected the correct way around?
Can you please run at a terminal
i2cdetect -y -r 2
and post the results?
Okay, I'm dumb. I was using the Audio Expander without the Bela itself. I didn't even know we ordered audio expanders... just pulled the first board out of the box and assumed it was a Bela. I will delete this thread if I can.