Unreal Engine Issues
Unreal Engine Issues
Nvidia Graphics Drivers cause editor menus to flicker and disappear after using the editor for an extended period of time
UE - Graphics Features - Apr 16, 2021This issue seems to be occurring on a variety of Nvidia cards. So far, I haven't seen any indication that it is affecting AMD graphics cards. The majority of the reports have indicating that the pro ...
Cine Camera Actor drop downs missing from details panel
UE - Editor - Workflow Systems - May 28, 2021The Lens, Color Grading, Global Illumination, Reflections, and Rendering Features sections in the Cine Camera Actor Details panel are missing their drop down buttons. This issue is occurring in // ...
Setting a float variable to a value that's beyond the maximum value of a float causes the editor to become unresponsive
UE - Editor - UI Systems - Localization - Nov 12, 2021When inputting an extreme large value into a float variable that exceed the maximum value of a float, the engine then becomes unresponsive. I tested this with an integer variable and this did not oc ...
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 ...