Unreal Engine Issues
Unreal Engine Issues
Restarting the engine makes c++ classes not visible from the content browser
UE - Editor - Workflow Systems - Apr 5, 2022After creating c++ classes, if the engine is restarted, the c++ classes will not be visible in the content browser. However, the created classes are visible from the explorer. After opening the engi ...
Moving a water body causes engine to drop fps and spike ms
UE - Graphics Tools - Terrain - Water - Apr 26, 2022Moving a water body lowers performance on the engine. The fps drop from 120 to 30 and ms spike from 8 to 30. This issue occurs in 5.0 Binary and 4.27 Binary on Windows. On Mac, FPS drop and ms spike ...
Ray Traced Translucency causes artifacts when rotating a Static Mesh that is far away from center of the map
UE - Graphics Features - Jun 17, 2022Tested in //UE4/Release-4.27 CL#18319896 Ray Traced Translucency causes artifacts when rotating a Static Mesh in the 'Open World' level when moved far away from the center of the map. The Artifacts ...
Enhanced Input Axis Actions repeatedly firing the last input value when entering a Common UI menu
UE - Gameplay - Input - Sep 7, 2023When using an axis mapped input action such as looking around with a gamepad joystick, then opening a Common UI menu, the last input axis value will keep firing irrespective of the current joystick ...
Some debug modes do not work in PIE
UE - Platform - Mobile - Jan 9, 2024It looks like the output of the debug pass is ignored, and the final output from the last frame before the pass was enabled is displayed instead. If the pass is modified to return a different textu ...
Some instances spawned by NeagaraDataInterfaceChaosDestruction breaking event will be set location to the world origin
UE - Niagara - Data Interface - Nov 29, 2024The following code can often be found in UNiagaraDataInterfaceChaosDestruction.const int32 ParticleID = ParticleIDParam.GetAndAdvance() - LastSpawnedPointID + 1; The LastSpawnedPointID is usual ...
RootMotionModifier_SkewWarp bug
UE - Anim - Gameplay - Mar 6, 2025In /Game/ABPLinkingShowcase/Blueprints/Pawn_ABPLinkingCharacter: The character mesh’s root location is lower than the capsule’s lowest point. This is what causes the issue. Based on the event graph, ...
Scroll Bars for Certain Editor Windows are Reversed when using Trackpad on Mac
UE - Platform - Apple - Mar 25, 2015Certain scroll bars within the Editor while on a Mac have their directions reversed. i.e. The 'World Outliner', the 'Details' panel within a 'Blueprint.' The suggested workaround I gave to the user ...
Stationary Lights are causing shadowing errors with Movable Objects
UE - Graphics Features - Feb 11, 2015Stationary Lights are generating shadows with flickering black square and vanish shadows altogether on movable objects in the Preview of 4.7p6 and in the newest Release Branch of 4.7 (2439472). The ...
CameraVectorWS Input Data as Post Process Blendable not Rendering Correctly
UE - Graphics Features - Apr 6, 2016When calling a post process blendable to the screen using the CameraVectorWS input data, only the geometry is effected and not the screen space. Note I sent an email out about this issue, and it ha ...