Problems with VR

Hello everybody, I am very new to VR. I am currently working on my bachelor thesis. It’s a building that you can go through with VR. I created my own GameMode and a new Pawn. I placed the pawn behind the front door. Now when I play in VR Preview, the camera is outside the house, somewhere between walls, or flying three feet off the ground. The set the eye-height to 0. However, the game does not start at the position where I placed the pawn. Especially not at the height where the eyes should be. I know, the information is very inaccurate, but I do not know exactly how I should describe it better. I hope you can help me. I use HTC Vive. Many thanks for your help! Johannes PS: Sorry for my english