Odd line on print

I am printing up a project. I have an issue with a visable line around the box. I am not sure it is the printer or the design or the way the slicer is slicing it. I am using bambu pla gray and the standard setting with 0% alt part fan (to keep warping down). With all srandarded settings i still get the line but also warping


The line seems to be right where the walls and lid top join. The design was made by starting with a solid square and extruding the walls up.

Any ideas?

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