I’ve just taken a look at it in Blender and it’s beyond repair. It’s completely destroyed. Take a look at this: every black line represents a break or fragmentation. Normally, there shouldn’t be any black lines, except at the edges. This part actually consists of hundreds of individual pieces. What’s more, the layers aren’t even connected; it’s like floating slices of cheese.
Looks like the messy vertices on bottoms that the AI sloppers generate
You’ll need a better model. This one is simple to recreate with cubes but given the topic im assuming you see this same trouble on the complex pieces too.
The only modification I have done to the full imported model is scaling of the model narrower from 1226mm to 1200mm and then cut it via Bambu Studio down to 200x200mm plates. I have done couple of other maps as well (800x800mm), where in one case modifying the blues(water) number in Smoggy tool had helped in this similar case.
In order to understand what I might be doing wrong, any guesses?
That was the mistake: the maps are not designed to be cut up in the slicer. If you want to do that, it’s almost essential to use a mesh programme that closes the cut edges properly.
So if you still have the original map, you should cut it in a mesh program like Blender. The map is simply too complex, and Bambu Studio definitely reaches its limits and makes mistakes.