Bot is "playing" after being paused.
I paused bot and started a new game.
On first and second turn, after spending all mana bot is pressing end of turn button.
On turn four, same thing, press end of turn. After that he wasn't active.

Second game, same thing. lol
If rope is burning, and you play a card, spend all mana, bot is pressing end of turn.
After turn 4 he seams to stop doing that.

I noticed this in few games. He is doing this mostly on a first game after being paused.

edit: second game
he did it again on turn 9 just when I was about to hit end of turn. :D