The DiffusionProFile file on the scene model material was lost after the scene was packaged as an Assetbundle, causing a rendering error
Maybe you forgot to add somehow the diffusion profile to your asset bundle ?
I my side I tried with Addressables (that use asset bundles under the hood) to :
- load a scene (not referenced in the build settings) from addressables
- from this scene, load and instantiate a subsurface materials with a diffusion profile, and a volume containing that diffusion profile in it’s list.
Worked without issues, and the diffusion profile was not referenced directly in addressables, but still included.