How to set position, rotation, scale of bones

Sorry, I’m not asking you to put more code into the playground. I need to know why you expect transferring this information to work from one side to the other. Some users have asked similar questions on other threads (not through the network) where they are trying to retarget an animation. I think this is also what you are trying to do, except over the network? If so, the issue is whether the math works when you do this. If your skeleton is perfectly matched with identical bone matrices, it should work, but if not, then it gets complicated.