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SetVectorParameterValueOnMaterials not working in packaged game

SetVectorParameterValueOnMaterials blueprint function does nothing in packaged game when it is in the ConstructionScript. It worked in 4.14.

To reproduce:

  • create a third person blueprint project

  • create a blueprint actor, add a cube component and put this in the construction script: alt text

  • put a instance of the actor in the map

  • run PIE, the cube is red as expected

  • create game package (I tried Windows 32 bit)

  • launch packaged game, the cube is white

If the blueprint code above is moved from construction script to BeginPlay, it works correctly when packaged. I did not try other Set*ParameterValueOnMaterials but they likely have the same problem.

Product Version: UE 4.15
mat_param_bp.png (482.4 kB)
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asked Mar 01 '17 at 09:41 AM in Bug Reports

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Hey matfer,

I've reproduced the issue and have entered a bug report which you can track using the link below:


Thanks for your report.

Have a great day

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answered Mar 01 '17 at 05:09 PM

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Sean L ♦♦ STAFF
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