Both cans are same lot code but one has galvanized looking interior and has a smell I would associate with canned fish. The mango puree itself smells and tastes normal. Even the can that doesn't smell off looks a bit iffy at the seam.

There is another brand with the same issue plus visible corrosion on the rim, and the only other one I've seen is likely worse since the can exteriors are all sticky and dented.