"Default-Diffuse" Material previews don't match

Unity: 2D

Won't Fix

6.6.X

6.5.X

6.4.X

6.3.X

6.0.X

URP 2D aligns its material support with URP 3D. This material is not supported in URP 3D, despite displaying a similar preview. As BiRP is being phased out, support for this material is not planned.

How to reproduce:
1. Create a new 2D Unity project
2. In the Hierarchy, right-click -> 2D Object -> Sprites -> Any Sprite GameObject
3. In the Inspector, on the "Material", open the Object Picker
4. Find the "Default-Diffuse" Material and observe both of its previews

Expected results: The previews match
Actual results: The previews don't match

Reproducible with: 6000.0.73f1, 6000.3.14f1, 6000.4.4f1, 6000.5.0b5, 6000.6.0a4

Reproducible on: macOS Tahoe 26 (M1)
Not reproducible on: No other environment tested

"Default-Diffuse" Material previews don't match

Unity: 2D

Won't Fix

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Have a workaround or additional info about this issue?

"Default-Diffuse" Material previews don't match

Unity: 2D

Statuses

Won't Fix

Resolution Notes

6.6.XWon't FixURP 2D aligns its material support with URP 3D. This material is not supported in URP 3D, despite displaying a similar preview. As BiRP is being phased out, support for this material is not planned.

Description

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