Maybe you can see what's going on from this picture.
This is from the begginning of the second video.
I'm not sure what that white thing is that's pointing up, but I noticed on the vid that yours is pointing to the side on the X axis.
I've redone this from the start a few times and it always seems to come out like this. When I go to group them, the joints shoot off in different directions way away from the skeleton.
Also, mine says Group1 and yours said group7. I don't know if this matters or not.

Any clue?


Thanks
Mark