You just got a x2 entry. Technically the 18626 was your first one, so I guess that is the legitimate one. However, as long as one of them is removed I guess the issue is solved.
EDIT: seems Fizzer is already on the case :) seems all your games is merged onto 18626 right now. duno whether he will delete 4 of them or not.
Edited 9/3/2017 03:56:20