On Linux, Mouse input is not capture in Skeletal mesh editor -> Section Selection right click menu

UE - Platform - Linux - Nov 3, 2017

Attempting to interact with the pop up menu that appears when right clicking in Skeletal Editor -> Section Selection causes the pop up menu to be closed instead. Regression: No - same behavior occu ...

Add Component node loses reference on BP compile

UE - Gameplay - Nov 16, 2017

When adding an actor or scene component blueprint reference to an actor blueprint, the component gets changed to an Add Component node when updating the component blueprint. This bug was not present ...

Crash when syncing a folder with source control that contains a level that utilizes Level Streaming

Tools - Dec 28, 2017

A crash occurs when you attempt to run the sync command on a folder that contains a level that is using level streaming in the editor. This was tested with Perforce and Subversion. Have not tested ...

CLONE - ShaderCacheTool build fails

UE - Graphics Features - Nov 20, 2017

In 4.18 and 4.19, it is no longer possible to build the ShaderCacheTool. REGRESSION: Yes. The ShaderCacheTool builds successfully in 4.17.2. It looks like the missing MergeShaderCacheFiles property ...

[Feature Request] Select Node should allow you to right-click and reset a value pin back to a wildcard

UE - Gameplay - Blueprint - Jan 12, 2018

There is an issue where the Select Node does not Reset wildcard values for its pins. This issue does not appear to be a regression Versions Tested: 4.17.2 - 3658906 4.18.2 - 3794801 4.20.0 - 381396 ...

Reimporting Static Mesh LODs yields unexpected material assignments

Tools - May 24, 2018

Reimporting an asset after making changes causes loss of saved LOD changes when editing a static mesh. Similar issue was logged and fixed for SkeletalMeshes but this issue is still occurring for ...

Non-nativized classes that implement a nativized interface class do not get interface methods called when invoked through a Blueprint function library.

UE - Gameplay - Blueprint - Jul 5, 2018

UObjectBaseUtility::GetInterfaceAddress() fails due to an incorrect serialized value of the 'bImplementedByK2' property within the non-nativized class's Interfaces array on save. See support thread ...

HLOD visibility state isn't cleared when changing scene

UE - Graphics Features - Sep 25, 2018

HLOD state is not cleared when moving to a scene without HLOD so primitives may read the state from the old scene and incorrectly cull objects. The safe fix is to clear the HLOD state maps when the ...

"Invalid resource entry creating uniform buffer" when running Vulkan on Mobile

UE - Platform - Mobile - Apr 30, 2019

Android projects in 4.22.1 crash on launch with Vulkan enabled. Did NOT reproduce in 4.23 MAIN at CL 6156332 4.22.1 release CL is the same as a related fix for this ( [Link Removed] )  ...

Calling TearOff then Destroy on an actor results in client actor also being destroyed

UE - Networking - Jan 14, 2021

When calling TearOff followed immediately by Destroy, the channel will be closed with the reason that the actor was destroyed, so the actor will be destroyed on the client as well. In the UDN linke ...