Unreal Engine Issues
Unreal Engine Issues
AI character does not recognize controller/behavior tree input when spawned during game
UE - AI - Jun 21, 2015AI character in user project does not react to behavior tree commands when spawned during play. In the specific example attached, the first pawn works correctly, but when removed from play and a n ...
Blueprint drop down menu constantly flickers with negative zoom
UE - Gameplay - Blueprint - Oct 21, 2014DESCRIPTION: The drop down menu of blueprint nodes constantly flicker at negative zoom REGRESSION: Yes Broken: 2330325 Worked: 2304027 (4.5 branching point) ...
Refraction not working with MakeMaterialAttributes
UE - Graphics Features - Sep 14, 2015When setting a material to Use Material Attributes and then feeding in a Refraction value with MakeMaterialAttributes, the refraction doesn't work properly Reported in 4.8, but I tested in Main as ...
Collision jitters when going up stairs, causing erratic overlap events.
UE - Simulation - Physics - Jan 11, 2016When overlapping with another object while moving up stairs with a character, the overlap events (OnBegin / OnEnd) that occur will be called multiple times in an alternating fashion. This will also ...
Vertex Painting - Unexpected behaviour when painting Skeletal Mesh with Low Radius Brush
Tools - Oct 21, 2019Unexpected behaviour when painting skeletal meshes with small radius brush. This does not occur with static meshes. Confirmed in 4.25 MAIN @ CL 9730599 ...
Convert Mouse location to world Space appears to be returning the wrong values in VR
UE - Platform - XR - Jul 14, 2015When using the node "ConvertMouseLocationToWorldSpace" in VR appears to be restricting the mouses position to a small section of the available screen. ...
Particles can not be displayed once they disappear in ParticleLOD
UE - Niagara - Jul 22, 2019I have attached a project to reproduce. [Link Removed] The problem is that if there are multiple emitters It seems to reproduce when all Emitter is Disable. It works well if there is one Enable. [ ...
Particles can flicker at the end of first emitter loop when interpolated spawning is enabled
UE - Rendering - Architecture - Niagara - Jun 18, 2020Particles flicker at the end of first emitter loop when interpolated spawning is enabled This issue does not occur if interpolated spawning is disabled. This issue does not occur for any of the su ...
Fbx importer: Issue when reimporting staticmesh base LOD and there is some custom LOD
zComponent - Archive - Mar 2, 2023When we reset the material to fbx we should take care of the LOD since we will change/reorder the material slot array. ...
Building in VS fails if Application.ico is missing
UE - Foundation - Core - Mar 25, 2015When building a project in VS, the build process will fail if Application.ico is missing from the /Build/Windows/ folder. User reported seeing this when checking in/checking out a project on differ ...