u/Errlyagain

Pretty sure I already know the answer but wanted to run it by you guys. I’ve been busy on our kitchen so we had a contractor do our master bathroom. We ran into plenty of issues with him but this has recently popped up. 6 months old and grout deteriorating around the drain. Could this be that he didn’t silicone around the drain and took grout all the way up to it or are we looking at something deeper here?