Reflections missing on build

Hi all!

We're about to release our app for iOS and have had some issues recently when building the app. In the Unity editor our asset looks like this:


After building and running it on an iPhone X or iPad, it looks like this:


Essentially all assets with reflections turns dark and looses their reflections though the specular highlight remains the same. Our hypothesis is that the reflection / skybox / lightmap doesn't make it's way over when we make the build. Does anyone have any suggestions for us to try out or might know whats wrong?

 

Probably that shader had fallback for lower hardware and you visualized the high end version on the editor.

 

Thanks @neoshaman we'll check if that could be the issue