Unreal Engine Issues
Unreal Engine Issues
The Perspective grid Z Fights with meshes placed in world (regression)
UE - Graphics Features - Jan 12, 2017The editor grid will zfight with meshes that intersect the grid in the 3d viewport. Creates and unpleasant experience while working with the grid turned on. Repro: 1. Launch Editor 2. create new ...
Moving actor to another level breaks soft object reference
UE - Gameplay - Jun 9, 2020REGRESSION: In 4.24, there was a fixup process that would allow the soft reference to remain valid. This seems to be missing in 4.25 Moving an actor to another sublevel immediately breaks soft ref ...
Fbx Importer: Make sure the blendshape curve keys have the correct tangent scale
UE - Anim - Oct 4, 2021The tangent of the blendshape curve seam to have the wrong scale (but correct direction) from this UDN. https://udn.unrealengine.com/s/question/0D54z000079J03OCAS/skip-compressing-anims-and-buildin ...
A WaterBody blueprint class with an added component will not compile if Blueprint Nativization is enabled
UE - Graphics Tools - Terrain - Water - Nov 23, 2021This is Not a regression. Tested in: //UE4/Release-4.26.2 CL15973114 Binary - Reproduced //UE4/Release-4.27.1 CL17735300 Binary - Reproduced When adding a component to a Water Body actor it should ...
USplineComponent::CalcBounds is not defined in shipping builds
UE - Editor - Workflow Systems - Jul 12, 2022USplineComponent::CalcBounds is not defined in shipping builds (presumably the thought being that nothing can be rendered in shipping, and hence no scene capture required). But if CalcBounds is use ...
CaseIssues with Korean input in Window 11
UE - Editor - UI Systems - Jun 14, 2023When entering Korean in the EditableBox on Windows 11, the two Korean characters after pressing the Space key are not entered. I confirmed that it occurs in UE5.1 and UE5.2, and it does not occur i ...
Issue with PLA Editing inside another PLA causes Z-Fighting or Mesh Disappearance.
UE - World Creation - Worldbuilding Tools - Dec 6, 2024When editing a Packed Level Actor (PLA) that is inside another PLA, z-fighting or mesh disappearance will occur. More specifically, it is seen when duplicating a mesh inside the PLA, upon saving the P ...
Performance issue with the material dock
TM - Tools - Oct 1, 2025See video. Tested on 2025.2 In a project where you have a lot of materials, it take a long time to open the material dock. Here around 20 seconds. And that's at each time you want to enter it. Y ...
EQS Query Not Detecting Different Floors
UE - AI - Jul 7, 2016Running an EQS for something such as finding a random point on a grid will not generate results on multiple floors. See the attached screenshot for an example. Was unable to reproduce in 4.11.2 d ...
Match3 Crashes on IOS and Android when Packaged using Nativized Blueprint Assets
UE - Gameplay - Blueprint Runtime - Aug 19, 2016Match3 crashes shortly after being opened on both Android and IOS devices when the experimental blueprints option "Nativized Blueprint Assets" is enabled. Verified that the issue does not occur if ...