UR22 Right Stereo Side Missing on M1 with Tahoe

I recently bought an “unused” UR22 and I’m having a problem where there’s no audio on the right stereo side.

I’m running the latest driver (3.1.7) which supports Tahoe and Apple Silicon. I’m new to Cubase, so I ended up testing with a YouTube video just to rule out Cubase newbie errors.

I’ve got the main L/R outs to an amp and speakers. I set my macOS system Sound to use the UR22 and when I play a YouTube video I can’t hear anything out the right speaker. I switched the cables going into the back of the UR22 around and discovered that I’m still only hearing audio out the left speaker. If I plug headphones into right output (not sure how good an idea this is, but I did it anyway) I can only hear audio out the left side.

So audio out both the L/R outputs, but I can’t hear anything on the right side.

Tahoe is supported by the driver, so it’s difficult to believe there’s an issue with the driver. I’m not running any other audio apps that might interfere, not to my knowledge anyway.

Any ideas as to what could be causing this?