BBKeySelector does not handle multiple Object types

UE - AI - May 30, 2016

It's not possible to configure a BB key selector to accept multiple different types of UObjects. The issue comes from using strings to identify declared key type filters, which doesn't work well fo ...

Insufficient stack size in async MediaCapture thread

UE - Virtual Production - IO - Media - Aug 21, 2023

Reported from our partner Babooblab: The UDN Customer does not give any detailed information to reproduce the issue. However they specify the kind of issue (stack overwflow) and give a possible sol ...

Widgets always come in to viewport with a zorder of 0 after being removed and added back

UE - Editor - UI Systems - Apr 8, 2015

If a widget is removed from parent and then gets added back to the screen later it will come in with a zorder of 0. ...

Execute Console Command r.SetRes Fullscreen breaks Dynamic Skylights when tied to Event BeginPlay

UE - Graphics Features - Apr 6, 2017

Using the Execute Console Command 'r.SetRes 1920x1080f' directly with an Event BeginPlay node within blueprints, any Stationary/Movable Skylighting information is no longer visible. A simple workar ...

UFUNCTION in a derived class with a different signature will cause a crash when called

UE - Foundation - Core - May 12, 2016

Reported by AnswerHub user. UHT should block UFUNCTIONs which hide other UFUNCTIONs with the same name but different signature. ...

TArray<UClass*> in UFunctions are not handled correctly in generated code

UE - Foundation - Core - Feb 27, 2015

Reported on AnswerHub, but confirmed locally. Generated code converts the TArray<UClass*> into a TArray<TSubclassOf<UObject>>, which doesn't compile because TArrays are not compatible in that way. ...

Editor Crash when custom Enum is used as Set or Map container type

UE - Foundation - Core - Mar 14, 2017

Making a blueprint variable a container (a Set or a Map with the Variable's "Pin Type" set to a custom Enum) and restarting the editor causes the editor to crash when opening the blueprint. Note: O ...

MediaAssets: Crash in UMediaSoundComponent::UpdatePlayer

Media Framework - Nov 20, 2017

When assigning the same Player ...

RPCs do not work in a class with no properties

UE - Networking - Mar 25, 2017

NetFields are not initialized for classes without properties, preventing RPCs from working. Should just be a matter of removing the PropertyLink check in UClass::SetUpRuntimeReplicationData. See UDN ...

When re-categorizing variables within a blueprint collapsed categories pop open

UE - Gameplay - Blueprint - Mar 23, 2015

If a user wants to change the category of a variable this will cause other categories that had previously been collapsed down for convenience to spring back open. This can make dragging and dropping ...