PerInstanceRandom and Instanced Static Mesh bug.
In 4.17, unlike 4.16.3, "PerInstanceRandom" node in material doesn't change value with instances of Instanced static mesh component, if they are NOT added in construction script or directly to component. Reproduction steps:
If you do this in Construction script or directly click + to add instances to mesh component, PerInstanceRandom works. If you than use Update Instance Transform on the same instances PerInstanceRandom doesn't work.
Thank you for reporting this issue. I've reproduce the issue and entered a bug report for the issue. You can use the following link to track the issue's progress: UE-48340.
Have a nice day!
answered Aug 12 '17 at 08:58 PM
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