It’s a very simple mesh, I think.
It doesn’t even have fingers - yet.
Mixamo gives me an error even when I am choosing the Skeleton LOD - No fingers.
And ActorCore from AccuRIG crashes towards the end of the rigging process.
What could I be missing?
Simple_Man_morepolys.fbx (76.7 KB)
Well… there’s something really weird with the topology on your shoulders, and the legs might also be confusing, but I’m guessing it’s more of a technical problem. Specifically, you might have overlapping geometry. Select all, press M, choose by distance. See if that helps
Honestly, I don’t think Mixamo is going to be able to rig this, as Mixamo expects more or less realistic anatomy. You’d probably be better off just making your own armature
Thanks for sharing JH 
I was suspecting this.
I downloaded your .fbx and opened it in blender. There is nothing really wrong with your model from a technical standpoint. The topology on the shoulders is not ideal, but it shouldn’t bother mixamo. Mixamo doesn’t need particularly realistic anatomy or good topology. I rigged this absolute mess of a generative robot model years ago without any issues. It also doesn’t have fingers. It’s missing a head, and has an extra joint in its legs.
There’s also no overlapping vertices or flipped normals or anything in your model. I took the file you included and uploaded it straight to mixamo without any issues (besides the viewport stuff you can see there. I think thats an issue with safari or my adblocker)
I would say try restarting your computer, and test it in a different web browser, maybe allow mixamo through your adblocker if you have one.
Can’t give any advice for ActorCore or AccuRIG as I haven’t used either.
If all else fails, you can rig it easily with Rigify, which is prepackaged in blender but not enabled by default. It doesn’t include a library of motion tracked animations, but you get to practice animating by hand, lucky you!
You went beyond expectations with this reply NiklasWerth!
This is great info indeed. I’ll follow your advise.
I was lucky with AccuRig just now, what I did different was to choose 0 fingers for the hand rig, this prompted the program to skip that process. Now it worked!
