I’m not sure.
Perhaps @themiddleman can provide more details as to the actual steps he took to make it work. But, like I said, we are now using the Monkanim branch (https://github.com/Nehon/monkanim) or rather relevant pieces of it.
It’s not feature complete, but … we’re trying it out to see whether it’s complete enough to use in production for our use case. Seems good so far. We’re next going to be testing morph target animations aka. blend shapes. If that turns out ok then we should have a working 3D pipeline which can handle our specific needs.