What you were expecting to happen, and what actually happened: I expected this to not happen anymore, since I thought/hoped it was fixed for good. It happened. I had to retreat because I couldn’t do anything!
How often does this happen? When did it begin happening?
Hadn’t happened in a while, but even once is too many times when you think it’s fixed for good.
Steps to make it happen again
Why would I want to make something so irritating happen again? I would imagine playing more areas with the potions would make it happen again, what else?
Hmm…is there a hero present on enemy team? Check. How many game modes (other than PvP) feature a hero on enemy team? Probably, every single one and then some more, if there’s a need of further confirming and specifying.
Is there any troop that creates potions present? No. Is there any weapon that creates potions present? No. In what game mode (outside of PvP) potions may appear “naturally” without a troop or a weapon specifically creating them? Probably, every single one and then some more so we are in dire need of further confirming and specifying.