Unreal Engine Issues
Unreal Engine Issues
[CrashReport] FCurveEditorSharedData::FCurveEditorSharedData
UE - Niagara - Nov 1, 2017This is a trending crash coming out of the 4.18 release. It may be a regression as there is no record of it occurring in 4.17. User Descriptionsopening a particle from the conetnt browser Source ...
Preview Rendering Levels Do Not Display Supported Optimization Viewmodes in Viewport Dropdown
UE - Platform - Mobile - Apr 2, 2019When attempting to set an optimization viewmode while using a Preview Rendering Level other than Shader Model 5, the Optimization Viewmodes dropdown is missing all of its options and instead display ...
GPU Particle Collision causes shaking when set to bounce with low resilience.
UE - Niagara - Jul 27, 2016A particle emitter with GPU sprites on certain settings will shake violently as they collide with the ground. This requires there to be a strong Const Acceleration module and Collision with low resi ...
[CrashReport] UE4Editor_Core!FText::FText() [text.cpp:194]
Tools - Aug 22, 2017This is a regular crash occurring in 4.16 and 4.17. The callstack is nearly identical to [Link Removed], which was fixed in 4.15 (different error message though). User DescriptionsImporting Files ...
If "Update Position Eash Frame" of "Skel Vert/Surf Location" is enabled, the particle continues to rotate.
UE - Niagara - May 25, 2020It seems to have occurred since UE4.23, and the cause was the following part of "ParticleModules_Location.cpp".//From UE4.23 if (bOrientMeshEmitters) { //We have the mesh oriented to the normal o ...
LevelStreamingPersistence plugin improvements
UE - World Creation - Worldbuilding Tools - World Partition - Dec 29, 2023UDN: [Link Removed]Fix SaveToFileCommand : [Image Removed]Problem with private properties serializing structs:[Image Removed]Add support for runtime instantiated UObject classesAdd single restore c ...
Crash when changing r.MaterialQualityLevel when FastGeo plugin enabled in cooked build
UE - World Creation - Worldbuilding Tools - Sep 5, 2025The engine crashes when the r.MaterialQualityLevel is changed in a cooked game that uses the FastGeo Streaming Plugin. The crash doesn't repro with the same steps in Editor, just in a cooked build. ...
Mac project being rejected from app store over read/write access
UE - Platform - Apple - Jan 20, 2016Game was rejected from the Mac App Store for attempting gain read/write access to directories which weren't permitted. Reporter of issue has proposed a possible fix on his AnswerHub post: These tw ...
[CrashReport] UE4Editor_UnrealEd!FAssetEditorToolkit::GetDefaultTabIcon()
Tools - Nov 2, 2017This is a fairly common crash that occurs in the 4.17 and 4.18 releases. This callstack was originally being tracked under [Link Removed], but that had specific repro steps that were confirmed fixed ...
Unable to override private Blueprint variables in child classes
UE - Gameplay - Blueprint - Jun 16, 2022In UE4, "Private" for Blueprint variables was misnamed: its behavior actually meant "Protected". In other words, it can't be read or written to by external objects, but it can be by derived types. A ...