Applying envMap to Object does not work (showing white)

Hey all,

I try to add an envMap to a Mesh using:

mesh.material.envMap = this.envMap;
mesh.material.envMapIntensity = 1;
mesh.material.blending = THREE.AdditiveBlending

As you can see here it is not showing correctly:
envMap Demo

When I try to add the same image in the Three Editor it works fine:
envMap in Three-Editor

… the image is the same and is correctly loaded in my project and perfectly stores as a Texture in this.envMap.
I do not get any Javascript Errors.
But for some reason, it is showing totally white as you can see in the first image.

Any idea what I’m doing wrong?

Fyi, the pages you’re sharing are locked behind a password.

I updated the links in my original post.