While playing a game hosted by a bot last night I ended up getting stuck randomly while using a Demon Tank. Not sure how or why it happened but I have attached a replay to help. Check at around the 24:00 minute mark. Hopefully this report is helpful.
I've checked the replay. I probably missed the point where you stucked, however, if it was in the battle against the two other tanks (~23:40), one may have used a net or ensnare item or a simple stun.
Seems like you stuck at the same time blue is kicked. This rarely happens. I saw once or twice after a kick a random player stuck..
You can avaoid it by -afkai or -afk i think.
That may help. Other than that, i have currently no idea.