Penny's Pursuit is almost always crashing when fighting Zomboss

Just about 2/3 times I start this weeks Zomboss it crashes at about the halfway mark, well its not that consistent, today it crashed 20 seconds into the level and also 10 seconds remaining until the end of the level. If it is the plants I am using, or some kind of sinergy between the boss and my plants... I honestly dont know.

I am using Mega Gatling Pea, Primal Sunflower, Shine Vine, Appease-mint, Enlighten-mint and Hot Potato

As far as I am aware, the crashed dont seem to have a common cause, I dont think its me placing either of the mints or hot potato, so I am at a loss.