Unreal Engine Issues
Unreal Engine Issues
UnrealVS: Compile Single File no longer working after upgrading to 5.3
UE - Core - Cpp Tools - Oct 2, 2023After installing the UnrealVS version that arrived with 5.3. I can no longer use CompileSingleFile. It does however work on the Lyra project. One difference I notived, however, is that Lyra seems to ...
Unable to kill UnrealBuildTool, UBT no longer propegates sigterm
UE - Core - Cpp Tools - UnrealBuildTool - Aug 24, 2026When UBT is launched through one of the standard wrapper scripts, Ctrl-C no longer cancels the build. The `dotnet UnrealBuildTool.dll` process and its compile actions keep running to completion in t ...
Inconsistency is docking location when opening assets
Tools - Feb 19, 2015When opening materials, textures and meshes the tab that opens will randomly either dock to the main editor window or open as its own window. User's video highlights inconsistency. ...
Snapping Rotation Causes Small Decimal Changes
Tools - Dec 5, 2014Repro 5/5 When snapping and rotating an object to the grid along the Z-axis there are small decimal float changes in the details panel. I informed the user this was a small change and will have li ...
Vector2D struct does not save default values in macro inputs
UE - Gameplay - Blueprint - Sep 1, 2016Vector2D struct does not save default values as a macro input Regression (no) issue (does) occur in 4.11.2 ...
Change in bitfield in a USTRUCT fails to replicate to clients
UE - Networking - Jun 23, 2015In the sample project provided on UDN, the server changes a bitfield value but the change fails to replicate to the client. ...
Default name 'None' for TextureSampleParameter2D blocks overriding in the material instance.
Named 'None' in the material editor, TextureSampleParameter2d is not overridden in the material instance. ...
Changing Child Actor Class does not update Child Actor Template
UE - Gameplay - Blueprint Editor - Sep 28, 2017WHen the Child Actor Class value is changed in a blueprint, the Template name is not updated. Note: The Settings uner the Child Actor Template dropdown DO update when the class is changed. Workaro ...
Free physics constraints between two objects of differing size causes smaller object to jitter
UE - Runtime - Simulation - Sep 13, 2023A cube constrained to a physics actor will start to jitter uncontrollably when interacted with. (see attached media and repro steps for more details) Tested in the following //UE5-Release-5.3-CL ...
GroomComponent: SetVisibility(false) causes per-frame simulation reset instead of stopping it
UE - Runtime - Deformable - Mar 12, 2026UGroomComponent::TickComponent sets bResetSimulation = true every frame when the component is not visible. This causes NiagaraDataInterfaceHairStrands to triggering a full simulation reset every fra ...