Your model is lifting off the plate.
Hmm, I’ll try increasing the bed temperature from 55 to 60 and turn off cooling for the first layer. The bottom of the inside of the container is several layers up, but perhaps being so close to the edge of the printing area had an impact.
Did you test this without the AMS?
No, not yet.
Here’s the pre-sliced model - the walls are supposed to be pretty plain from top to bottom.
The underside isn’t completely flat, it’s beveled to fit into a grid frame.
I went through the sliced layers, but I didn’t see anything that looked different around the problem areas. Especially not around the inside corners that were botched.
I’m going to try printing just one of these, instead of three, and see how it goes with the warmer bed and first layer cooling turned off.