I have ran the verify integrity within Steam, and it all passed.
I have also looked in the file locations for steam_appid.txt and found nothing
I had even fully re-installed the game, and it still occurs - If anyone knows some way to fix this that's not one of those two, much appreciated
It's a pain to keep being kicked from your friends' strikes multiple times.
https://i.imgur.com/UQnXy7e.png