Contrary to the linked UDN question, this doesn't seem to require the actor to be replicated.

The problem is that when UWorld::DuplicateWorldForPIE is called for a PIE client instance's persistent world, the prefixed package name isn't added to the PackageNamesBeingDuplicatedForPIE list, causing FStringAssetReferences in the duplicated world to not be fixed up.

Steps to Reproduce

1. Unzip the attached project
2. Generate project files, build, and run an editor build
3. In the "Play" menu, set number of players to 1 and run dedicated server to true
4. Note the output log prints a message like "LogTemp: MyActor_0 and MyActor_2 ARE NOT in the same world! This indicates a PIE bug!"
5. Note that with the fix, the message changes to indicate the actors are in the same world.

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Affects Versions4.64.10
Target Fix4.10
Fix Commit2659521
Release Commit2702721
CreatedAug 18, 2015
ResolvedAug 18, 2015
UpdatedJul 27, 2016
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