Another Update.
I don’t really understand How or Why BUT - if you setup you animation how you want it. Key All Frames, Export it and Importing it once. You’ll have the exact issues you are describing.
If you click the “no follow” button that removes all constraints and Export/Re-Import again the issues go away - including the head spin apparently.
What i’ll do is re-code the Bake action to remove constraints, and re-apply the constraints automatically after the export succeeds. I just have to do a little further testing and I’m in the middle of adjusting animations atm…
Both plugins were “stealth” updated. If you download the current version exporting Should work.
Still needs more testing.
Use “Key All” button to return from the mannequin export to the animation and automatically re-parent the rig.
This is coupled to a blender bughttps://youtube.com/watch?v=9nvXfo9QKhw
Made the report. Perhaps they’ll address it by next version.
Yet another update.
I got bored with having to fight against windmills to get 1 animation right. Granted I was working on a complex 500+ frame interaction. but between the bake bug and the head twisting it was just driving me nuts.
I dug into it some more and removed the Scale from the rig bones. This SEEMS to have addressed most issues.
The update is up for download. Still requires testing, but I was able to swing the animation I was working all day on with it.