Unreal Engine Issues
Unreal Engine Issues
Failed to build in Github UE4.27.0.
UE - Simulation - Physics - Aug 30, 2021Failed to build UE4.27.0 with Win64/Development Editor. Can avoid this error that excluding the project from build configuration. (Solution UE4->Properties->Configuration Properties->Configuratio ...
Decal Actor Returns 0,0,0 With Actor Position Node
UE - Graphics Features - Nov 7, 2016The actor position node no longer returns the actor position for the decal actor. ...
Overlap functions of child actor components run when spawned without overlap if player is at 0,0,0
UE - Gameplay - Jun 23, 2016Overlap functions of child actor components run when spawned without overlap if player is at 0,0,0. It registers all "other actors" as cast successful even when the actor cast to is not the actor's ...
UMG: Drag-drop widgets get stuck at (0, 0)
UE - Editor - UI Systems - UMG - Nov 7, 2022Reported on the dev forum, drag-drop widget is broken in the 5.1 Preview.https://forums.unrealengine.com/t/unreal-engine-5-1-preview/662523/221 Anyone else having problems with UUserWidget::SetPosi ...
When alt dragging a skeletal mesh with another actor attached to a socket the relative position of the actor will be set to 0,0,0
Tools - Oct 5, 2016When alt dragging a skeletal mesh with another actor attached to a socket the relative position of the attached actor will be set to 0,0,0. The relative offset for the copied attached actor appears ...
Setting Multi with ETC2 and PVRTC will select ES3.0 as minimum instead of 2.0
UE - Platform - Mobile - Dec 15, 2016Chris found a bug where if you set Multi, ETC2 and PVRTC will select ES3.0 as minimum texture instead of ES 2.0 ...
Materials with Subsurface Profile not affected by Opacity value
UE - Graphics Features - Oct 24, 2017A material with Shading Model set to Subsurface Profile is no longer affected by Opacity value in 4.17, 4.18, and 4.19 (Main) but was previously working as intended in 4.16. This is a regression. ...
Niagara Regression - Looping particle with Spawn Burst Instantaneous on time 0.0 flickers for a frame between loops
UE - Niagara - Jul 16, 2025Note: This worked correctly up to UE 5.4, but repros from UE 5.5 up to mainline latest. If a Niagara Emitter is set up with "Spawn Burst Instantaneous" on time 0.0, and the spawned particle(s) have ...
Scaling blueprint component via gizmo breaks if axis scale reaches 0.0
UE - Gameplay - Blueprint - Oct 4, 2016Using the transform gizmo to scale a blueprint component will break the functionality if scaled to 0.0 and released. Workaround: If the scale value is directly set to non-zero value, gizmo can be u ...
The base color of a material in unlit mode changes when specular amount is above 0.0
UE - Graphics Features - Feb 24, 2020Material's RGB base color values are changed in Unlit mode when specular is greater than 0. User repro video: [Link Removed] Tested in: 4.23.1 CL#9631420, 4.25 CL#11574810 ...