Unreal Engine Issues
Unreal Engine Issues
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, ...
Paper2D Set Sprite function in Construction requires mobility to be set to Movable
UE - Gameplay - Paper2D - Jun 23, 2015If you set up a default Sprite in an Actor BP and in the construction script set the sprite to an Editable Sprite Variable, in order for the new sprite to show up mobility of Sprite and BP must be M ...
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 ...
UV Layout Changes on export from Engine to Maya and Max
UE - Editor - Content Pipeline - Import and Export - Jan 19, 2015The UV layout of a Mesh is altered slightly when exported from the engine. It becomes more noticeable on objects as their UV Islands shrink in size. Given a default full 0-1 unwrap it looks like t ...
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 ...
Attached Project Crashes When Moving Child Actor Components in Blueprints
UE - Gameplay - Blueprint - May 3, 2016The editor crashes when moving a child actor component in the blueprint viewport. This has not been reproduced in a clean project, and only seems to be occurring in the user project where they have ...
Setting size of GameViewportClient gives different results on Android than in Editor
UE - Platform - Mobile - Feb 9, 2017Setting size of GameViewportClient gives different results on Android than in Editor OpenGL ES renders with the viewport origin in the bottom left, so that's potentially related to the problem. A ...