You need to get tile guy out there as soon as possible before it comes completely apart and falls on somebody. I see the problem but I really need to see it in person.

I have called him and he has literally abandon the job... nice, eh... I have to get someone else to demo and redo. Floor heat not working and schluder shower curb leaking too just in same bathroom and many problems other places. Just wondered what he did wrong? Don't want to repeat mistake.

I'm not sure what we're looking at. How about another picture further back, please?