Even though I took the molar inside the melted moat chest, it does not appear on my map. I have to play with 1 missing molar.  

I'm having the same issue, thought it might be in the hedge lab but that molar is lying broken on the floor with no core. 

I've gone through the maps multiple times and that's the only one missing. 

Is there anything that can be done about it?

 

Xbox on solo

Thanks!