Unreal Engine Issues
Unreal Engine Issues
BoxOverlapActors fails to catch an Overlaped actor with a particular scale, from a particular position
UE - Simulation - Core - Sep 30, 2025BoxOverlapActors fails to overlap a scaled Floor actor with a particular scale, from a particular position and extent. The setup is really specific and described in Steps to Reproduce. The required ...
Capsule component Shape values can be glitched inside of Actor class bp
UE - Gameplay - Components - Oct 29, 2015Capsule component Shape values can be glitched inside of Actor class bp This effects 4.9.2 and 4.10 Preview 3, however it is working properly in 4.11-2736016 User Description: Alright, so the Cap ...
[CrashReport] UE4Editor_Landscape!FLandscapeEditDataInterface::SetAlphaData() [landscapeeditinterface.cpp:2617]
UE - LD & Modeling - Terrain - Landscape - Sep 8, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...
Exporting Mannequin to Blender then Re-importing to UE4 Incorrectly Rotates Animations by 90 Degrees
OLD - Anim - Jun 16, 2015Exporting the UE4 Mannequin to Blender then re-importing to UE4 breaks the animations, causing them to reimport rotated 90 degrees ...
Animation Orientation does not Auto-Convert to UE4 Coordinates when Reimporting
OLD - Anim - Nov 23, 2015Animation orientation does not auto-convert to UE4 coordinates when reimporting the same way it does when importing the same animation as a new import. In other words, a run animation generated from ...
Mouse Not Functioning Correctly with Multiple Displays Connected to Mac
UE - Platform - Apple - Apr 24, 2015When using mutliple monitors connected to a Mac the mouse behavior does not function well. Attempting to navigate and drag windows to and from individual displays proves difficult. The user reporti ...
Plugin module is not reloaded when a game module that depends on the plugin module is hot reloaded
UE - Foundation - Cpp Tools - Hot Reload - Jun 28, 2018Performing a hot reload after modifying game code (plugin code is unmodified) does not also reload plugin modules. In the attached project, there are some log messages output when the plugin module ...
[CrashReport] Assertion failed: !bRequireNormalization - UE4Editor_Landscape!ULandscapeComponent::ReplaceLayer()
UE - LD & Modeling - Terrain - Landscape - Jul 19, 2017This is a common crash affecting users in 4.16, and has occurred since at least 4.14. Over 200 unique users have been affected, though they have provided little information. User DescriptionsI am a ...
Some Planar Reflections not working on more than one surface if it's a single mesh
UE - Graphics Features - Nov 2, 2016Planar Reflections only work with a single surface or limited surfaces when it's a single mesh vs multiple meshes making up the piece. Attached is a sample project that will show the issue. Level ...
Sampling textures with bias in the path of a custom data pin causes derivative operations when avoidable
UE - Rendering Architecture - Materials - Apr 8, 2025Materials that make use of the analytical derivatives path to avoid hardware derivatives can still generate derivative operations on texture samples when the shading model has a custom data pin and ...