Unreal Engine Issues
Unreal Engine Issues
GAS: Double attributes not shown GameplayDebugger
UE - Gameplay - Gameplay Ability System - Aug 27, 2025Context The Gameplay Ability System lets devs specify numerical attribute properties in UAttributeSet subclasses. Although the preferred attribute property type is FGameplayAttributeData, GAS has l ...
Interface function has the incorrect pin type if referencing self
UE - Gameplay - Blueprint - Sep 1, 2015Interface function has the incorrect pin type if referencing self User Description: I have an interface that requires an array of its own interfaces as output. I have that array of interface as a ...
[CrashReport] UE4Editor_Core!rml::internal::ExtMemoryPool::initTLS()
UE - Gameplay - Blueprint - Aug 15, 2017This is a trending crash coming out of the 4.17.0 release. Users have not provided any descriptions of their actions when the crash occurred. The callstack shares some similarities to an older 4.14 ...
A hidden dedicated server is launched when playing as client
UE - Networking - Jul 15, 2020When we play in editor with the Play Net Mode set to Play as Client, a hidden dedicated server is launched. Previously in 4.24 the dedicated server would always launch with a visible command window. ...
Report of branching point notifies failing to trigger
UE - Anim - Runtime - Nov 15, 2021The problem seems to come from a notify having its LinkedMontage set to null when RefreshBranchingPointMarkers() is called. IsBranchingPoint() fails in this case, so it's never registered as a branc ...
Uniform scaling in the viewport not working as expected when additive mode is enabled
UE - Editor - Verse Class Editor - Apr 2, 2022The uniform scaling does not work as expected Repro Steps: 1) Add a cube to a level 2) Set the scale (X = 16, Y=9, Z=9) 3) Click the Lock icon to activate the Uniform Scale feature 4) In the viewpor ...
Large World Coordinates appears to not work for Niagara Mesh Particles
UE - Graphics Features - Nov 28, 2024When a Niagara System is placed at around 10^8 units away from the origin, the movements of the mesh particles aren't smooth as expected, but jumpy. These particles behave as if they are using a flo ...
Datasmith & mikktspace tangent cause entities to glow with lightmaps
UE - Editor - Content Pipeline - Datasmith - Exporters - Feb 22, 2019The steps above are reduced to their simplest expression. I appears that several customers complained about lightmap baking resulting in glowing objects. This typically happens on interior door fr ...
Using Snap Rotation displays the Rotation wrong (or calculates the Rotation wrong and losses precision) when the Y rotation axis is 90 degrees
UE - LD & Modeling - Modeling Tools - BSP - Nov 7, 2019Although the Details Panel shows the degrees wrong, the object seems to have done it's rotation correctly but not in the right degrees. It will rotate to the position specified but it goes the wrong ...
Crash when using Property Access node on Animation Blueprint (repro based on Lyra Starter Game animation layers)
UE - Anim - Runtime - Jan 24, 2024When using the Property Access node on Animation Blueprints to gain performance by better exploring parallel processing, it is possible that the underlying accessed property or any intermediate acce ...