Game always freezes online/escape the klyn!

I have been coming across this rather annoying glitch in the game. Me and a friend are playing escape the klyn survival exploration mode trying to get to wave 50. And we keep freezing in the game we just can't move. Swapping characters doesn't help, are connections are absolutely fine. It's just horrid. We got to wave 40-42 and it did it and we were unable to do anything and go further. Once I swapped characters and it let me continue and we played for bit longer maybe 2 waves then it crashed/froze again. It's game breaking annoying stuff, thus needs to be fixed.

This has happened both attempts we have done it. Everything is still moving it's just the character who is frozen.