When you "export as", Photoshop will choose the last folder you exported to, not the folder where your PSD is saved, which 2018 did. Is that intentional? It makes more sense to choose the folder you are working in, not the last one.
Also, revert the constrict transform changes or add snap to to the transform from centre hotkey. Consider your userbase before making changes to a workflow that has been the same for the better part of a decade.