I love this game but for I have two rooms that dwellers keep saying there is a corpse and its making them sad in both of the rooms and I personally think this is making it significantly harder to do good with happiness and when ever I double click on a room and see all the dwellers in that room their health bars with show up and then when I zoom out or double click out their health bars won't go away and when I also double click on a room the upgrade arrow slides in the top right corner but it won't go away 75% of the time so the arrow and the hammer will cross over if these problems could be fixed as soon as possible I would greatly appreciate that and I look foward to getting my copy of Fallout 4!!! Already pre-ordered it!! Anyways if these issues can be fixed please do so.

Did you check the room roster (lower left corner when the room is selected) or the main dweller list (gear in the upper left corner) to find the dead dweller?

I also get the health bar bug after zooming in.

To fix the arrow and hammer, tap the same room it is stuck on just once, then tap on an area with nothing in it.

I'm currently having the same problem with the invisible dead dweller and they don't show up on the room roster I had it before and I had to delete a 2 wide room that was maxed out in upgrades and totally replace it before the problem went away

I am having the same problem with the invisible dead dweller. Everyone in my diner is complaining of a corpse and becoming increasingly sad. There is no corpse at all. Also when I zoom in one room the health bars on some dwellers get bigger and don't go away.

Does the dead dweller still show up in the vault roster list? You should be able to select them there and it will highlight them where ever they are at.

I had a dweller die in the background of a room, and wasn't able to select them on the screen, I had to go to the list.