Bundled compute PSO compilation stalling tender thread

UE - Rendering Architecture - RHI - Feb 13, 2025

EA Motive has pointed out a potential bug they found related task graph synchronization and when compiling compute PSOs: [Link Removed]. From the screenshot they sent over, it seems that a task grap ...

bIgnoreAllPressedKeysUntilReleaseOnRebuild in Enhanced Input behaves unexpectedly during pawn possession

UE - Gameplay - Input - Jun 11, 2025

This is a speculative bug report from the user.  The fix for this is to re-do the work of 31224705 but in a better way. The "bShouldBeIgnored" flag is being overriden by the previous mapping's va ...

Crash When Adding a second animation timeline after adding keys to the first

UE - Anim - Sequencer - Nov 16, 2015

If the user adds a second time line to a widget blueprint after the first has had a key frame add then the editor will crash if the curve editor is selected. ...

Crash reparenting actor component to InstancedStaticMeshComponent

UE - Gameplay - Blueprint - Sep 14, 2016

Reparenting an actor component to an instanced static mesh component causes a crash. Found on //UE4/Dev-Blueprints CL-3122712 ...

Crash right-clicking in anim blueprint asset picker

OLD - Anim - Mar 10, 2017

Editor crashes when right-clicking in the blank area of the anim blueprint asset picker ...

Editor Crash on Mac after creating blueprint structure

UE - Gameplay - Blueprint - May 10, 2017

Creating a blueprint structure in the content browser causes the editor to lock up and become unresponsive. ...

CLONE - Editor Crash on Mac after creating blueprint structure

UE - Gameplay - Blueprint - May 19, 2017

Creating a blueprint structure in the content browser causes the editor to lock up and become unresponsive. ...

The Toggle Comment Bubble button for Reroute nodes does not revert the comment bubble to constant visibility

UE - Gameplay - Blueprint - Nov 21, 2015

The Toggle Comment Bubble button for Reroute nodes does not revert the comment bubble to constant visibility if the bubble is set to only appear when the node is hovered over. This does not occur w ...

Assertion opening blueprint with HISMC created in 4.11

UE - World Creation - Worldbuilding Tools - Foliage - Jun 7, 2016

After project was upgraded to 4.12 opening a blueprint that contains Hierarchical Instanced Static Mesh component will result in a crash. From the log I this is the important part: Assertion faile ...

Blueprint Function Library does not save Struct default values

UE - Gameplay - Blueprint - Jan 25, 2017

When a Struct is used as a Local Variable in a Blueprint Function Library, the defaults for its member variables are not saved. If, for example, I enter "3" for an Int member, and "Foo" for a String ...