Unreal Engine Issues
Unreal Engine Issues
Improper Rendering of Paper Sprites in Translucent Sort Axis.
UE - Graphics Features - Apr 8, 2019Regression as of 4.22. Translucent Depth Sort Policy results in improper rendering ( Z-Fighting flickering) with Paper2D Sprite Components. ...
FileSystemDerivedDataBackend may output a corrupted access log
UE - Foundation - Core - Derived Data - May 20, 2021This problem is caused by the AccessLogWriter has not been flushed at the termination. The following workaround flushes the Writer.class FFileSystemDerivedDataBackend : public FDerivedDataBackendInt ...
Instanced EditInlineNew objects are parented to the CDO when used by a child BP of a parent BP that inherits from a native class
UE - Framework - Blueprint Runtime - Mar 21, 2024EditInlineNew objects added to Instanced array stored in a struct are seemingly ignored and the object is instead parented to the CDO of the owner. The owner must be the BP child of a parent BP tha ...
The Command and Control keys are swapped for Input nodes on Mac
UE - Gameplay - Input - Nov 4, 2014Mac only. The Command and Control keys are swapped for Input nodes. Pressing the Left Command key triggers Left Ctrl, pressing Left Control triggers Left Cmd, and pressing Right Command triggers R ...
Crash in Standalone when using a Blueprint Library Function inside a Macro from a Macro Library
UE - Gameplay - Blueprint - Jan 9, 2015Using a Function from a Blueprint Library inside a Macro from a Macro Library will cause a crash when using Standalone Game for PIE. The same setup will function as expected when Playing in Selected ...
ChildActor Component with physics spawns at the wrong location
UE - Gameplay - Jul 16, 2015ChildActor Component spawns at the wrong location as long as the actor that the ChildActor is referencing has the StaticMesh set as the root and simulating physics. User Description: Basically I h ...
Scenecapturecomponent not including Niagara effect if custom renderpass is used
UE - Graphics Features - Mar 20, 2025When using an "FSceneRenderer::CustomRenderPasses", the View never has Distance Field textures assigned. Can it instead reuse the Distance Field clipmap from the main view? ...
Nanite UV switch seams
UE - Graphics Features - Jun 13, 2025Analytical Derivatives are not calculated properly when using UMaterialExpressionSwitch. Disjoint UVs in screen space result in large jumps in the derivatives, which can cause artifacts as the wrong ...
Creating a new Matinee Controller node only shows the Finished pin
UE - Gameplay - Blueprint - Dec 9, 2014Worked: P4 Main 4.7 CL:2375748 P4 Releases 4.6 CL:2369413 (Gold) Broken: Portal Binary 4.5.0 CL:2326478 After creating a matinee with event(s) in it, creating a Matinee Controller only shows the " ...
Engine crashes while attempting to resimulate procedural foliage volume with target layer set on landscape proxies
UE - World Creation - Worldbuilding Tools - Foliage - Apr 17, 2015If a procedural foliage volume attempts to use the "target layer" feature and resimulate while encompassing a landscape proxy, the editor will crash. Frequency: 3/3 Crash Report: [Link Removed] ...