Our Constellation 8k is forcing 17:9 Aspect Ratio on cameras

We have the constellation 8k, and a Pocket 6k Pro running as a stage camera. When we plug the Pocket 6k Pro into the constellation, it forces the camera to match the frame rate and shutter angle, which is good, but it's also forcing the shooting mode to be 17:9, which is a problem since the show is 16:9.

Can anyone point me towards a fix for this? I've been googling and searching to no avail.