No stereo output through monitors or headphones

Hi
I am using a QU16 as an audio interface and am running Reaper as my DAW. Output to monitors are through the Alt out.
When I pan to the right in Reaper there is nothing coming through the right channel so I only have mono.
The pan on the Qu works and I have stereo through monitors and headphones but not when I pan in Reaper. I have also connected a Presonus audiobox to trouble shoot and have stereo and can pan without issue through monitors and headphones.
I have also connected through the main outputs on theQu and have the same issue.
Help!

Hi Greg,

I believe this is in process of troubleshoot with my colleague Liam through our A&H Support System.
Once solved, you’re welcome to post any resolution here for reference of the rest of the users! :slight_smile:

Cheers,
Rafael

The problem is in Reaper I guess. You need to ensure that it is connected the right way. Reaper main out is connected to two mono inputs (or a stereo in) on the QU?