Pixel Aspect issue with Fusion and Mocha Pro Plugin

I’m testing out the Mocha Pro plugin in Fusion.

In my Fusion comp I have an R3D that was shot anamorphic. When I send the clip to Mocha, it’s not interpreting the pixel aspect correctly, and I can’t find a place to manually change it. See the attached images.

This definitely looks like a bug. It will only respect the 1:1 ratio rather than an aspect ratio. We’ll flag an issue for this.

One way around this would be to force a physical pixel size with a Resize node rather than an aspect ratio, then restore the ratio with another resize node on the output.