I’m running 2 x MR816’s on Yosemite v10.10.4 with the latest drivers/firmware. I also have a UR824 that I’m using as ADAT expansion (not using the USB interface) and running everything at 96K, wordclock sync is via BNC cable. I route the outputs to an analog console for mix-down. Using the MR816 analog outputs works fine but when I use the UR824 outputs via ADAT they are out of phase with the MR816s. I’ve checked/swapped cables, checked/swapped console inputs, and have confirmed that the signal coming out of the UR824 is out of phase.
Any ideas what could be causing this?