Unreal Engine Issues

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Filtering by collection is broken

This happens because the Collections module isn't loaded when the FFrontendFilter_TextFilterExpressionContext instance is created: , CollectionManager(FCollectionManagerModule::IsModuleAvailable() ...

Changing class of Sub Anim Instance will crash if tag is specified

Switching sub anim instances that have a set tag will crash the editor when compiled. This is likely due to the use of Tag as the object name. The tag does not change, and the old UObject is still a ...

"Found more than one function with the same name" after duplicating an interface function

REGRESSION: No, this occurs as far back as 4.20 After duplicating a blueprint interface function, the duplicate interface will have an error similar to this:LogBlueprint: Error: [Compiler NewInterf ...

Setting a Vector value in the Material Parameter Collection causes crash

Creating a Vector parameter within the Material Parameter collection causes a crash with the engine. Tested in 4.21.2 (CL - 4753647), 4.22 (CL - 5159901), 4.23 (CL - 4980862) ...

Changing setting in RecastNavMesh breaks "reference" to NavMeshBoundsVolume

When you create a NavMeshBoundsVolume, it automatically creates a RecastNavMesh-Default. You can change the settings of the nav mesh there. However when you change settings of this RecastNavMesh it ...

[CrashReport] UE4Editor-CoreUObject!UObject::SetLinker(FLinkerLoad *,int,bool) [UObjectLinker.cpp:107]

No comments from users Generated from CrashReporter ...

UWorld::CleanupWorld causes issues with sublevels when changing maps after building lighting

A licensee has reported that UWorld::CleanupWorld is causing issues with assets in Sublevels if you build lighting on the parent level, save all of the maps, and then change to another level. The as ...

High bandwidth usage on listen servers, even with bare minimum replication

UDN user claims that in an empty level, when using a listen server, bandwidth is higher than expected - ~5.5KB/sec for two connections, and appears to be framerate dependent. Has posted screenshots ...

PreConstruct visualization does not appear to work for Grandchildren of a widget blueprint

When creating a grand child widget it appears that the preconstuct does not behave as expected. The child widget fails to render widgets that belong to its parent's parent. ...