Unreal Engine Issues
Unreal Engine Issues
Single sided complex collision mesh collision blocks character movement from backside
UE - Runtime - Simulation - Nov 17, 2023Commenting out the branch in FTriangleMeshSweepVisitor::VisitSweep is a work-around.if (CullsBackFaceSweepsCode != 0) { if (VectorMaskBits(IsBackFace)) { // Don't cull the back face ...
Some instances spawned by NeagaraDataInterfaceChaosDestruction breaking event will be set location to the world origin
UE - Rendering - Architecture - Niagara - Nov 29, 2024The following code can often be found in UNiagaraDataInterfaceChaosDestruction.const int32 ParticleID = ParticleIDParam.GetAndAdvance() - LastSpawnedPointID + 1; The LastSpawnedPointID is usual ...
Crash occurs when right-clicking in graph of a blueprint with a null parent class
UE - Gameplay - Blueprint - Mar 17, 2017REGRESSION No Crash occurs when the user right-clicks in the graph in a blueprint that has a Null parent class. ...
Crash in FBlueprintActionMenuBuilder while editing blueprints
UE - Gameplay - Blueprint Editor - Apr 28, 2017Note those are not 100% repro steps they are what I remember doing. I've got this issue twice so far and both times I was editing a blueprint and switching between constructions script and event gr ...
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 ...
UMG Background Blur renders black on Android
UE - Platform - Mobile - Dec 8, 2016Tested on Nexus 6P with Android 7.0 Suggest that on mobile the background is not rendered in real time, instead we render the blurred image for one frame and use that same image for subsequent fr ...
Subclass disappears from class variable drop-down on re-open
UE - Gameplay - Blueprint - Mar 13, 2017Subclass disappears from class variable drop-down upon reopening the project. There is a workaround for the issue but it is strange in nature. Opening the level blueprint and adding the node in scre ...
Unhovered event occurs twice with 3D Widget when button is pressed and held
UE - Editor - UI Systems - Jul 21, 2017When using a 3D Widget that is a button when you press and hold a button and move off of the widget and let go of the mouse the engine registers a second unhovered event. Engine Version tested 4.1 ...
AssetManager can load blueprints of the wrong type when redirectors exist
UE - Gameplay - Sep 29, 2017The logic in the AssetManager to determine if a scanned Blueprint should be added to the primary asset directory is wrong if that blueprint has an active redirect targeting it. The simplest way to r ...
Videos of certain sizes no longer display in media players
Media Framework - Oct 27, 2017Videos of certain sizes no longer display in the Media Player, this also applies to when the media player is a texture or in a material. This issue appears to be a regression. Versions Tested 4.16. ...