Nothing I can do. It's a problem with Unreal engine. I gotta wait till version 4.19 (for Unreal Engine) releases to see if they fixed this bug. Sorry man, wish I could do more to help.
Its cool. Thanks so much for the support though! I watched some game play you tube videos on this game and it totally rocks! You should make this game on different areas, like maybe you could make one about 3 am at McDonald's, or something and you could use Ronald McDonald as the monster.
You do realize that DanTDM, the famous you tuber actually made a video on your game recently. You should check it out, I found it while searching the web for this game.