Unreal Engine Issues
Unreal Engine Issues
Niagara Scalability Crash When Processing Significance
UE - Niagara - Jun 4, 2025Method FNiagaraScalabilityManager::ProcessSignificance() iterates on indices from Context.SignificanceIndices and uses them to access the State and ManagedComponents arrays. It can then decide to cr ...
Cannot Package Game for Windows from External Drive on Windows 8.1 Boot Camp Mac
UE - Foundation - Core - Dec 17, 2014User is trying to package the xixoBerlinFlat Marketplace and cannot get a packged project from an external drive project on a Windows 8.1 x64 system running via Bootcamp on a Mac. ...
Manually changing the value for Constraint Value 1 & 2 causes odd visual issues
UE - Simulation - Physics - Jun 1, 2016Changing the values that govern what bones a constraint is suppose to be a joint between (Constraint Bone 1 & 2) will cause issues where the transform widget is moved to an appropriate location but ...
Failure packaging for android that supports both armv7 arm64 with GoogleVR plugin enabled
UE - Platform - XR - Aug 30, 2016Unable to package a build for android (ATC) if the GoogleVR plugin is enabled and both arm64 and armv7 are supported. This does not reproduce if you turn off GoogleVR. This does not reproduce if yo ...
Issue with Landscape Layer Blending Node compile in UE 5.4.2
UE - Graphics Tools - Terrain - Aug 2, 2024When the SetMaterialAttributes Material Expression is used without an input to MaterialAttributes, it will cause Landscape Layer Blend expressions to fail to compile if it is the only layer on a par ...
Launching game through Right click > Launch game feature from the file location with crash 4.5
UE - Gameplay - Blueprint - Jan 26, 2015When launching the game with the -game flag or through right click > launch game in the project folder will result in a crash in 4.5 if there is a library containing a macro. ...
Open Sound Control Blueprint Plugin stops working around 1 minute during play
UE - Audio - Jun 3, 2020Messages are not received around 1 minute into playing when using OSC blueprint plugin. Test Project: [Link Removed] User workaround: https://forums.unrealengine.com/development-discussion/blu ...
Frame specific functionality unusable in Composite/Montage editors post 5.2 changes
UE - Anim - Runtime - Jul 20, 2023Part of the changes for 5.2 required UAnimCompositeBase::GetSamplingFrameRate to be changed to return a very high framerate. This has the unintended consequence of effectively making the functional ...
LODBias causes landscape component to stop rendering if set >0 and Forced LOD set to -1
UE - LD & Modeling - Terrain - Landscape - Sep 12, 2016LODBias causes landscape component to stop rendering if set >0 and Forced LOD set to -1. NOTE If Forced LOD is set to 0, the component renders correctly. ...
Meshes made with the Pivot Painter tool don't work correctly on OpenGL ES3.1 + AEP
UE - Platform - Mobile - Dec 1, 2015In the project attached in original UDN post (too big to attach here) there is a tree that was created with the pivot painter tool that is animated. In the editor it behaves correctly, but trying t ...