Can't join Sandbox with my friend

[SigKun]

So basically, we joined the first time and it was OK, then for some weird reason after I held the "Tab" button and clicked (Take Control) on the bot I just spawned because I wanted to test something and I wanted to be on the enemy team, the game froze a bit, then after a while it did swap me but kicked "Puzzle" (The other person I was testing with) from the lobby, and I get stuck every time I join Sandbox with him, you can see the screenshots we took down below.

(Puzzle was playing the new hero "Raven" and I "SigKun" was playing "Lady Geist").

Here is my perspective (I can't move or shoot).



Here is Puzzle's perspective.