Inside UWorld::DuplicateWorldForPIE,
// The owning world may contain lazy pointers to actors in the sub-level we just duplicated so make sure they are fixed up with the PIE GUIDs
FPIEFixupSerializer FixupSerializer(OwningWorld, PIEInstanceID);
FixupSerializer << OwningWorld;
Seems redundant with FDuplicateDataReader already doing the fixup.
See whether this can be removed as it slows down PIE startup.
See UDN for more details:
[Link Removed]
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-181665 in the post.
| 0 |
| Component | UE - World Creation - Worldbuilding Tools |
|---|---|
| Affects Versions | 5.1 |
| Target Fix | 5.8 |
| Created | Mar 29, 2023 |
|---|---|
| Updated | Sep 10, 2025 |