Question Shaders not applying on play mode

I'm converting my project to URP, that means some shaders need updating.
I'm currently having an anoying issue: I have a scene (that is an asset bundle) that has updated shaders and everything works ok when I play this scene.
However, in a second scene, I load the previous scene as an aditive scene (that means I have 2 scenes simultaneously now), all my shaders are the default pink. And to add to the strangeness, all my objects have the correct shader selected, but if I reapply the shader again, it works.
What is going on here? Did some references got in the bundle generation? Are there meta files missing?

 

Pink usually means borked shader, as you know.

Pink in the asset bundle context often means the bundle was built for one target (eg., iOS or Android) and you are trying to load it in the editor, which won't work. It must be built for Standalone to work in the editor.

 

the shaders were built for Windows, and they work when I play the specific scene. They stop working when the scene is loaded aditively

 

If you do not use the shader in your base game, its code won't be built into the binary, and thus when the AB loads it will be pink. There is some googling about this mechanism to be had... here's a start:

https://forum.unity.com/threads/how-does-shader-stripping-actually-work.541467/

https://docs.unity3d.com/Packages/c...lightweight@5.10/manual/shader-stripping.html

 

One of the shaders that I'm using that I find hard to believe it will be striped is URP/Simple lit.
It doesn't seem shader stripping is the problem
The scene with the objects is an asset bundle, but the materials and shaders are not in that asset.
Materials and shaders are in the Resources folder, so they shouldn't be stripped (They are in the Resources folder because they are used by multiple asset bundles)
Some shaders like the previously mentioned URP/Simple lit are built in, so they're probably not stripped

 

This assertion runs counter to my experience.

 

Solved. It was damn simple. All I had to do was to Reimport all the project.