Heh, that's why i was confused in the other thread, your hands definitely were misassembled, but mine weren't. Glad you could fix it, and glad i don't have to cause i don't fancy myself on that one!
I think part of the problem with that leg panel is that it's not meant to be rotated the full 360, even though it can? Because, for transformation, you only need turn it maybe 45 degrees for clearance (as you clip the thighs to the shins) and then rotate the panel back and clip it in.
They really should have designed it with a wedge/stopper to prevent uneccessary movement.