Phone Model: Samsung Galaxy S6

OS: Android 5.1.1

Install Mode: Update over old build manually

Hi, I'm new to the forums because I've recently ran into an issue that has become a nuisance. This issue that I am having is that one of my vault dwellers has died in combat and I cannout revive them or remove them because their corpse simply is not there however anyone inside the room comments on a corpse being present. I don't know when this has happened as it took me a while to notice that one of my dwellers were missing and I have done other things since then as well as update to the new version of Fallout Shelter. I have read about this issue happening to others and the fix is to delete the room however this room happens to the be the vault entrance and I can't find anything in regards to my particular situation. I have cut my losses and considered the T-60f power armor and Miss Launcher are gone forever and I can live with that however the big issue that I have is that anyone placed in the vault entrance has a major impact on their happiness level (down to 20%) and it's killing my overall happiness level. Any help is much appreciated.