Unreal Engine Issues
Unreal Engine Issues
Expanding and altering a macro affects other macros in use.
UE - Gameplay - Blueprint - Nov 6, 2017Using the Expand node feature on a macro from a macro library alters the current functionality of other instances of the macros that are in use(even though the macros themselves have not changed). ...
ILC/VLM doesn't affect Static Staticmesh at all on Mobile
UE - Platform - Mobile - Sep 23, 2019In practice, developer wants some Static-Staticmesh actors don't build lightmaps to save iteration time as well as Memory and Package size; but still want lit by Indirect lightings ...
[CrashReport] UAIBlueprintHelperLibrary::CreateMoveToProxyObject [aiblueprinthelperlibrary.h:26]
UE - Foundation - Core - May 9, 2018User comments in crash group:I tried making an AI run into my sidescroller characterstarting level with ai 2188 void RemoveAllSwap(const PREDICATE_CLASS& Predicate, bool bAllowShrinking = tru ...
Game Controller Input affects editor input fields
Tools - Jun 30, 2015The joystick on a game controller input will take focus away from what you're working on if the joystick is moved or set in an odd position. ...
Panning in blueprints does not appear to be affect by windows pointer speed
Tools - Nov 14, 2016The windows mouse speed settings appear to have no effect on the panning speed in blueprint. ...
Custom Primitive Data on BP instance not taking affect while in editor
UE - Rendering Architecture - Apr 5, 2023Original Repo is from 4.27, however, it still happens in 5.2. This is happening because the Instance Data system does not update the field UPrimitiveComponent::CustomPrimitiveDataInternal from the d ...
SetControlRotation does not affect VR
UE - Platform - XR - Oct 1, 2015Using a Set Control Rotation node does not change the camera rotation when in VR mode. ...
Modified a mesh used as complex collision mesh does not affect the collision in the editor
UE - Editor - Feb 17, 2020When a user changes any properties (for calling PostEditChangeProperty ) in parent static mesh or restarting the editor, the modified mesh is applied correctly. how to reproduce: [Link Removed] ...
Clothing tool may generate an unsmooth display mesh on 4.26
UE - Simulation - Physics - Character - Mar 23, 2021This is related to the optimization applied in CL#13181876. Binding simulation mesh to display mesh can't find the nearest triangle when a triangle is located near the AABB boundary. ...
SkyLight Leaking does not affect reflections when the SkyLight is static but static lighting is disallowed
UE - Graphics Features - Sep 10, 2025Reflections do not receive SkyLight leakage contribution from a static SkyLight when static lighting is disallowed. This is caused by the function UpdateSkyIrradianceGpuBuffer checking if the SkyLig ...