Unreal Engine Issues
Unreal Engine Issues
ConfigContext on linux requires perforce path for defaults.global.json when global is perforce resolved
UE - Foundation - Horde - Server - Mar 7, 2025As of 5.5.2; appears present in main head as well. We have a asymmetry between how Include JSONs are resolved between Linux and Windows. This boils down to our URI construction in ParseIncludesAsyn ...
Pressing the "Show Inactive" button in the material instance editor did not display groups that did not contain the active parameter
UE - Rendering Architecture - Materials - Aug 1, 2024When pressing the "Show Inactive" button in the material instance editor, all material parameters are supposed to be displayed in the EditorUI. This is not the case, only some of the parameters are ...
Asset returns after being deleted from the content folder while the editor is open
UE - Editor - Content Pipeline - Content Browser - May 8, 2017Asset returns after being deleted from the content folder while the editor is open. A deleted asset comes back and does not prompt to save it. This leads to the asset being removed when the editor i ...
[CrashReport] Assertion failed: !PinRef->bWasTrashed | UEdGraphPin::SerializePin()
UE - Gameplay - Blueprint - Aug 29, 2017This is a common and longstanding crash that has occurred since at least 4.15 and affected nearly 500 users. The CrashGroup was previously linked to [Link Removed], but that had specific repro step ...
Niagara Simulation Stage + DynamicMaterialParameters crash
UE - Niagara - Feb 6, 2021deleting the code "&& SimulationStages[i]->bEnabled" in UNiagaraEmitter::GetScripts will bypass the problem [Image Removed] ...
[CrashReport] UE4Editor_ShaderCore!FVertexFactory::Set() [vertexfactory.cpp:180]
UE - Graphics Features - Jul 5, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Source Context: 165 return *VertexFactoryTypeIt; 166 } 167 } ...
Removing a transform track from the sequencer will no longer clean up spawnable actor when the sequencer is closed
UE - Anim - Sequencer - Feb 1, 2021Note : Reopening the level sequence causes ensure failed. (also see callstack) LogOutputDevice: Error: === Handled ensure: === LogOutputDevice: Error: Ensure condition failed: InstanceRegistry->I ...
When creating a new NiagaraSystem using existing system, the DefaultEffectType set in ProjectSettings is not reflected.
UE - Niagara - Jul 24, 2023When creating a new NiagaraSystem, the DefaultEffectType set in ProjectSettings should be reflected. If another EffectType is already set, it should be respected. The problem here is that when creat ...
Instance overlap functions for Foliage Instanced Static Meshes detects instances inconsistently
UE - World Creation - Worldbuilding Tools - Foliage - Apr 14, 2022Instance overlap functions for Foliage Instanced Static Meshes detects instances incorrectly. I was able to see this occur with both the Sphere and Box functions. In addition, I drew out debug sphe ...
Crash when resizing window using Quad Stereo Buffer
UE - Virtual Production - nDisplay - Oct 2, 2019We noticed crashes in our application when we attempted to resize a window or switch to full-screen mode. Hence, resizing windows and switching to full screen will result in a crash on Unreal Engine ...