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By Design
Votes
0
Found in
2022.3.56f1
6000.0.35f1
6000.1.0b3
6000.2.0a1
Issue ID
UUM-93718
Regression
No
Asset Preview displays outdated Material when an Object was assigned a newly created Material
*Steps to reproduce:*
# Open attached project
# Open a Cube Prefab
# Duplicate TestMat material and change the duplicate's color
# Apply the duplicate material to the Cube
# Observe the Cube Prefab's preview thumbnail in the Project window
*Actual results:* Cube's preview displays the colour of the original material
*Expected results:* Cube's preview displays the newly set colour of the Duplicate Material
*Reproducible with versions:* 2022.3.56f1, 6000.0.35f1, 6000.1.0b3
*Tested on (OS):* macOS 15.2
{*}Notes:{*}{*}{*}
* Using the Refresh or Reimport options for the Cube Prefab does not fix the issue
* Issue occurs when using Built-in, Universal and High Definition RPs
* Saving the Project after Duplicate Material is created prevents the issue from occurring
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Resolution Note:
This is by design. The issue here is that when you change the color of the material, it is a change in memory and not yet saved to disc (but prefab preview is using what is on disc - so old saved color). As soon as you save project by menu File->Save - the material change is saved on disc and prefab preview updates immediately.
I agree that this behavior is a bit confusing, but that is done for performance reasons..