Unreal Engine Issues
Unreal Engine Issues
Crashes when playing Slomo on NiagaraSystem with Solo and DesiredAge.
UE - Niagara - Mar 23, 2023When Slomo 2 is used to speed up the process, TicksToProcess is greater than 1, which means that ManualTick is called several times during one loop. When playback is completed by a ManualTick in t ...
[AI] Navmesh tiles on different layers get removed while streaming out in WP Dynamic Modifiers Only navmesh
UE - AI - Navigation - Feb 6, 2025Streaming out the navmesh and streaming the area back into the world before the GC runs causes the navmesh streamed back into the world to only have navmesh tiles on a layer with tiles that would b ...
Rect light LTC textures fail to load when cooking with bSharedLinearTextureEncoding enabled
UE - Texture - Apr 2, 2025When running a build with bSharedLinearTextureEncoding enabled, View.GGXLTCMatTexture and View.GGXLTCAmpTexture are pointing at the black texture fallback, which affects correctness of rect lighting ...
Preview Meshes in Material Instances lose their association to material on close.
UE - Rendering Architecture - Materials - Aug 13, 2015When you assign a Preview Mesh to a Material Instance, save and close the instance, on reopening instance, the Preview Mesh will not retain connection to the Instance and will revert back to its ass ...
Linux Slate Dialogs tga files do not have an image icon
UE - Platform - Linux - Jan 8, 2016TGA files do not have an image icon like the JPG files do in the Slate Dialogs in Linux. ...
No clear messaging that locomotion is based on Map for VR Template
Docs - Samples - Jul 29, 2016When a user first creates a VR template, if they're without motion controllers, they may wonder why it's "not working" (can't move, etc.) We should more directly message out that this is based on t ...
Map disappearing from project
Tools - May 21, 2015It's been reported that maps are going missing from projects and while they're showing up within the Windows Explorer folders, they're not showing up within UE4. You cannot migrate them in, import t ...
Parent blueprint not added to nativization array if only child saved
UE - Gameplay - Blueprint Runtime - Jan 25, 2017Currently parent blueprints are added to the list of blueprints to nativize if their children are flagged to be nativized only if they are also individually saved. Ideally, we'd update the list of ...
VR Splash screen and Async Load issue
UE - Platform - XR - Apr 10, 2017We encountered this problem too after upgrading to 4.15. It's caused by a timing problem when showing/hiding the async loading splash screen, so we only found it when loading maps in standalone that ...
[CrashReport] UE4Editor_Engine!SetDescendantIsEditorOnly() [scenecomponent.cpp:381]
UE - Gameplay - Dec 1, 2017This is a common 4.18 crash. Users have not provided any description of their actions when the crash occurred. Source Context 376 int32 NumDescendantsChanged = 0; 377 // recursiv ...