# Troubleshooting

### Objects in the demo scene are pink

Before using this asset, you should install the universal render pipeline package from the package manager and assign a render pipeline asset. If you are not using the universal render pipeline, the objects in the demo scene will be pink.

![](https://1827511642-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LzInl6-QAxSvemyRKBI%2F-M3Ge7RZg3H1sJWaouuL%2F-M3Gelg2rIgNqSAgy0xq%2Fpink_materials.png?alt=media\&token=2543a2b1-21fc-4f1b-b378-2e538e585f54)

### Caustics don't show up on terrain

This might be due to an SSAO custom pass being present where the source is set to *Depth Normals*. This is a bug in URP.