I was having a look at this today, seems to me the player BP is spawned halfway into the floor. I did the fix for 4.11 that people were having problems with by adding a scene component and attaching a camera as a child. This lets you move the camera up and down whereas just moving the camera doesn’t work.
I don’t see this happening until 4.11 is fully released.
If the camera wasn’t messed up you would see the UE4 logo in front of you. As it stands you can see it if you look up alot