First of all, thank you so much for your time. It’s much appreciated. However your suggestion didn’t work for me. Let me try to explain it little bit better.
Basically what I’m trying to do is to have one rigged character in T-pose, correctly weight painted, with pose morph tags for face, correct materials etc. Then I want to use bunch of different animations exported from the Mixamo, and just put the weight painted model on to the animations to save time. When I use the Content Browser mocap data, everything works just fine. (As soon as I put the Character definition tag from the “Content Browser rig” to the t-pose solver, the 1st frame snaps to correct position of the animation).
When I do the same thing, but with the Mixamo animation, the 1st frame of the weight painted model stays in the T-Pose. The animation works, but it’s offset as you have seen in the file I uploaded.
Same goes for the file you have uploaded. The animation starts from the t-pose (arms should start closer to the torzo, etc.)
Unfortunatelly I have no idea what you mean by this:
“drag the Mixamo Group on top of the other below the one you like to have the Character Object snap to the given parts.”
Thank you again for your time!