Object not in Game if packaged with HTML5


Im a total beginner when it comes to Unreal.
Im trying to package a Project using HTML5 so i can later add it to a Website.
The Problem is, that my Objects are completly missing from the Scene when i launch it.

When i package it for Windows it works as intended,

I´ve tried different export settings and all but i cant seem to find a solution.
The Camera animation is still working and so are the buttons, its just the Objects that are missing.

If anyone can help me it would be much appreciated.

Thanks in advance