i don't know how to explain this in simple words, but subs are certainly bugged AF. either it fails, or it desyncs the game kind of. i've just had to leave a game where a sub failed, my teammates continued to play on their own while they disconnected from my game and i was playing alone ! xD when i quit the match cuz it's not real, the game for my teammates was stopped and synced back to a previous action where they continued the game from ....
#substitution in clubs
near epoch
crisp tiger
same problem