Update:
I AM able to use this renderer with a non-360 video - or even a 360 video as long as I don't select the '360 output' option under project properties. Once I select that, I get a black video. So the workaround for now is to not use the '360 output' check box.
All:
I'm using an Insta360 EVO file as input, format 5760x2880 29.97 fps. I'm on the latest Vpro 17 version that supports 5.7k rendering and the software runs, but at the end of the render the file is a black screen. I have tested everything else by rendering in cineform which looks fine. Is there something else I need to do to get usable output out of this codec?