My pumpkin oatmeal recipe keeps burning when I double it, would you mind taking a look at it?

I'm this recipe for the IP but when I double it up it keeps burning. When I use 1 cup of oats it's okay, but when I use 2 that's when it burns.

I already tried putting in the wet ingredients first, I checked my seals, I scoured the bottom of the pot. It just keeps happening. Should I use less pumpkin?

Thanks for your time.