Unreal Engine Issues

Animating blueprint mesh duplicates uncontrollably

When animating within a blueprint of a subclass created in c++, the animating mesh replicates itself uncontrollably. Added to .h: UPROPERTY() UBoxComponent* BoxComp; UPROPERTY() USkeletalMeshCompo ...

When loading a new level, a variable of the subclass of type is reset to null in the classes inherited from UGameInstance or UGameInstanceSubsystem

Reproduced 3/3 times, issue does not occur in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. It's only in packaged & quick launched builds that this occurs; PIE works as normal. ...

Ensure in AR Template on Android

Regression: Tested in UE5/Release-5.0, this issue did not occur so it is a regression. ...

Widget "Listen For Input Action" executes on unexpected input event

Listen For Input Action firing erroneously. Confirmed in 4.26 MAIN @ CL 11536993 ...

Crash Occurring in Standalone When a Loaded Sub Level Contains an Actor With a Child Actor Component

Standalone is crashing when a map containing a sub level that has an actor containing a child actor component is streamed in, or if the level is set to be always loaded. To be clear, this is not c ...

Static mesh cube with 3 convex elements jitters when enlarged and settling on a convex static mesh at 30 FPS

Cannot build project for Shipping when bUseLoggingInShipping is set to true for a project that uses replicated properties

Enabling bUseLoggingInShipping for a project prevents the project from being built for Shipping if the project includes replicated properties. This is only an issue with binary builds of the Engine. ...

[CrashReport] UE4Editor_CoreUObject!UObjectPropertyBase::Identical() [propertybaseobject.cpp:60]

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Access violation - code c0000005 (first/second chance not available) Source C ...

CharacterMovement doesn't clear velocity

Velocities are not being cleared when physics simulation set to false.  ...

UMG ListView doesn't propagate OnItemSelectionChanged events to its items

"When using a UMG ListView widget, there seems to be two ways to be notified of item selection changes. An event on ListView which fires when the selection state of any item changes, and an event on ...