Bug/Issue An invalid unit order has been received

I was playing the co-op campaign with a friend. on the first heavensong mission. I moved an archer from his initial position next to a barracks and was immediately booted from the game. I was given an error that mentioned something about an issue with the server. When i tried to get back into the game, I had no trouble up to the point where it handed over control the game immediately booted me and gave me the above error.

Not sure what computer specs you need. I have win7.

 

Me and my friends are getting the same issue and we're using Nintendo Switches. Doesn't seem to be happen based off any particular action we take.

Happened in a couple of games now.

 

I had it too during an online match between me (Emperor666 on Switch) and a random switch user (Bridge) on Merryheath, first time I had this issue after a lot of matches.
Maybe it's only with Switch vs Switch matches because 95% of the time I played against PC users on my Switch

Weird now a second game (4 player game) gave the same error during the turn of the same Switch player that caused the error in the previous game (Bridge)

edit: If it can help, I *think* the move that caused both crashes was related to his Alchemist but I'm not certain
edit2: Here are the match ID's: U8Z4UF (1vs1) and 6TF5E8 (4 player game)
edit3: Apologies for the doublepost, I just made a new account here after encountering this bug and had no idea about specific forumrules
Today I encountered another broken game with the same error, this time against a pc player (match ID MHM3LL)
I've played many (+50?) games on Switch over the past year and only today I've encountered this bug