Chamelego- A few ponts come to mind. First are the lower stack's balls the same as before? If so then the stack height and gap between the cup and crown race are correct, but perhaps the seal ring between is missing. These rings are usually thin plastic and can crack, get lost or absorb solvent and grow to a size no longer usable. If the balls are of the wrong size the this first needs to be corrected. Why the missmatch of upper and lower stacks? Well, I know the likely reason but getting a new headset (with correct stack heights) would ensure all is right.

The before photo and after one looks to have the same crown race, at least the outside contour seems the same. But the crown race isn't yet press/pounded onto the seat. Did the shop do the reassembly? If so the they need to readdress this. If not then that's your dime. Andy.