No SRP in use or pink materials? Check the render pipeline asset

Pink is closer to a shader error than a missing texture

When a material becomes bright pink after a URP switch, first check whether its Shader is supported by the active render pipeline. Unity notes that materials must be upgraded when moving from the Built-In Render Pipeline, otherwise they can appear bright pink in Scene view.

That makes the material's Shader and its pipeline support a better first check than reimporting textures or changing colour values.

Inspect project settings and one material together

Check both the default Render Pipeline Asset in Graphics settings and the override for the active Quality level. A Quality override takes precedence, and GraphicsSettings.currentRenderPipeline identifies the asset that is actually active. The Editor and a device build can use different pipelines when their Quality levels differ.

For a package or Asset Store asset, first check whether the publisher supplies a URP material set or separate import package. A copied scene can still share the original Material assets, so it is not an isolated sandbox. Duplicate the Material assets themselves or work in an isolated branch or project.

1. Check the Graphics default and the active Quality-level override for the current Render Pipeline Asset.
2. Inspect the Shader name and the asset publisher's pipeline support for one pink material.
3. Back up the target Material assets or create a version-control checkpoint before conversion.
4. Use the Material Upgrade scope in Render Pipeline Converter for a project-wide conversion. For a subset, select the Material assets and use Edit > Rendering > Materials > Convert Selected Built-in Materials to URP.
5. Reopen the converted Material, inspect its Shader and texture slots, and verify it in a device build using the target Quality level.

A custom shader may need more than the converter

If the Console or Inspector reports a shader error, the problem may be something an automatic converter cannot solve. The practical next step may be a compatible replacement, a Shader Graph recreation, or URP-specific HLSL work.

If only one asset turns pink, avoid changing the project pipeline again until you have checked that asset's support. Verify the material in a target-platform build as well as the Editor.