Any idea what went wrong??

Sherwin Williams super paint interior… did 90% of interior of my house in this color and came up a bit short. Did the trim with the old paint on a few walls. Took the lid off a can to SW to get more and it’s not that close… I understand color matching not being exact but the lid has the exact formula on it. Did they just mess up?

I got the “old paint” last weekend at a different SW store.