I have a problem with my endless runner game, on Unreal Engine Version 4.27

So i just started working on an endless runner game in Unreal engine 4, and everytime i hit the “Play” button it simulates the “Mastertile” i have. and the problem occured when i tried to making a Main menu, and HUD then i must have clicked on something i shouldn’t have maybe? so i have tried going to

Edit>Projectsetitngs>Gamemodes>project maps and modes> and default gamemode set to thirdpersongamemode. but it isnt helping, it keeps simulating the floor when i hit play. what can i do to fix this? im really stuck on this problem. hope you can help. good day to you all :slight_smile: