Shadow Acne is occurring on movable actors in Blueprint and C++ template projects. The Shadow Acne is present in editor and while launched on to Windows and Mobile.

This was found on separate graphics cards.

Steps to Reproduce


  1. Open UE4Editor
  2. Select a new BP or Code template project (First Person Shooter works well here).
  3. Create with no starter content.
  4. Navigate to the movable actors.

Expected Result: The lighting behaves normally and does not cause shadow acne on movable objects.

Result: The movable objects have shadow acne cast on them.

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Won't Fix
ComponentUE - Graphics Features
Affects Versions4.
CreatedOct 27, 2016
ResolvedAug 18, 2021
UpdatedAug 18, 2021
View Jira Issue