When I export I get all the frames, but you can’t see the animation. We’re using Apple’s built-in library for creating animated GIFs, and it is unfortunately flakey in several regards (sometimes it will make nothing at all which is what it sounds like you see) and other times it will have a very poor color palette selection making some elements invisible (what appears I am seeing). I’d like to switch this out for another GIF library in the future to make better versions.
Until then, my recommendation would be that if Hype doesn’t provide the results you want, try exporting as a movie and then use a different tool to convert to a GIF.