Noticeable input delay at lower FPS while Playing in Editor

UE - Editor - UI Systems - Mar 1, 2022

When playing in editor is running at a lower fps (<20) there is very noticeable input delay that wasn't present in 4.27.2. Works correctly while playing in Stand Alone or Packaged. Tracked this iss ...

FEditorFileUtils::SaveCurrentLevel returns true even when it fails

UE - World Creation - Worldbuilding Tools - Feb 25, 2022

In FEditorFileUtils::SaveCurrentLevel, we set the default return code as true (success) before checking validity of the current level or seeing if PromptToCheckoutLevels is successful. If we're unab ...

Misleading error message while attempting to drag in a BlueprintCallable Function into an Event Graph

UE - Gameplay - Blueprint - Feb 23, 2022

An error message informs the user that a function does not have the BlueprintCallable keyword if the same function is using a  native to blueprint communication keyword. The function/keywords are b ...

Set Editor Property node no longer works with Material Instances in UE5

UE - Gameplay - Blueprint - Feb 18, 2022

This is a Regression. Using an Editor Utility Widget to set properties on materials via Set Editor Property doesn't work in UE5 as it did in UE4. ...

VertexInterpolators allocate unused params which generate extra shader ops

UE - Rendering Architecture - Materials - Feb 17, 2022

As a follow up on this: https://udn.unrealengine.com/s/question/0D54z00006yxUdXCAU/vertexinterpolators-problem VertexInterpolators are added to the HLSL code even if unused and you demand the HLSL ...

Add a way to have BlueprintInternalUseOnly Async nodes placed via keyboard shortcut

UE - Gameplay - Blueprint Editor - Feb 17, 2022

Users would like a way to place K2Node_AsyncActions that are marked BlueprintInternalUseOnly into the graph with a keyboard shortcut. ...

AttachComponentToComponent node does not change the location of a Spawned particle system at runtime

UE - Gameplay - Feb 17, 2022

You can use the "Spawn Emitter Attached" function as a work around ...

Editor lighting components not displaying correctly with diffuse off with lumen enabled

UE - Graphics Features - Lumen - Feb 2, 2022

Licensee note: "I haven’t tested with Ray tracing. I currently have lumen enable and it’s occurring there." ...

EditInlineNew properties on components don't work if the component name has whitespace

UE - Gameplay - Blueprint Editor - Feb 1, 2022

EditInlineNew properties on components can't be properly set if the component name has whitespace in it. This appears to be a problem with resolving the property name in SPropertyEditorEditInline::O ...

There is no obvious way to disable Auto Exposure in a post process volume

UE - Graphics Features - Jan 31, 2022

There is no easy way to disable auto-exposure on a per-component basis.  This is a big source of confusion for people new to Unreal.  The work around is to set Min and Max Brightness to 1 or set to ...