[BugReport] Per Instance Random data lose in-game

Development Rendering
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1

When using HISM or ISM in the world.
All per instance data is gone, reset to a single value when in-game.

Super simple Reproduction Step :

  1. Place empty actor in world. Add HISM Component. Put a few instance of cubes etc.
  2. Create a material that utilize per Instance Random, apply to the HISM.

In editor you can see the per instance variation. When game is run, all variation is gone , reset to 0.
Note that any HISM / ISM added via construction script works.

2

Hello,

We’ve recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

https://epicsupport.force.com/unrealengine/s/

Thanks