Digitone Keys - output louder on right channel

Hi -

I’ve noticed on my Digitone Keys that audio plays loud out of the right channel, much more quietly out of the left channel.

Same behavior on the main outputs and headphone outputs.

On the individual track outs, left and right both play at the correct/full level.

Anybody else ever have this experience - any idea what it might be? Just trying to rule out any dumb user error and see if there might be an easy fix that doesn’t involve sending it back.