My friend is obsessed with smoking pot

Solution 1:

I got stuck here too! I did everything right, up til the point where we were set to leave to the next area. But then I thought, maybe there really was a way to feed that smoke pot to Trico and I was cruel for not trying harder to do so... So I went back. Bad idea; after following me back into that room, Trico became glued there to that pot.

I tried a lot of things but in the end I think there was no solution, it must have been broken. Poor kid didn't deserve it, but I even tried jumping to death right in front of Trico to reset the situation, but the fall wasn't enough to kill him. To add salt to the wound, Trico still paid him no mind even when the boy called out to him weakly in pain. That blue smoke pot is the cruelest unintentional enemy in the game. 😂

...Resetting from last checkpoint as you did made a lot more sense and did the trick. Ha!