Spawning under the floor

Hello if i click on play in unreal engine 4 it perfectly spawns inside the play area but if i package it as 64 bit and run it spawns me under the floor and fall the no where

what am i doing wrong ?

Just had almost the same problem and fixed it with a work-around. I just figured out that my character always spawns at 0/0/0 position by default. so I just placed him back at 0/0/0 and moved all other objects in the level around him in the right position. This worked pretty well for me. The fall down might be because you probably enabled some (maybe unnecessary) physics in the character settings.