Thanks for the tips, for now we have abandoned our plugin since we couldn’t get it to work on any platform. It is a shame though, since we are Unity developers and would be able to make a much more feature-rich, cross-platform viewer if we could do it within Unity.
Perhaps I will give it another blast when a new CloudXR version drops… I suspect our solutions were similar but yes it would be fun to compare if we can get it sorted out with NDAs. :)