Unreal Engine Issues
Unreal Engine Issues
Character Can Jump Indefinitely on the Client When JumpMaxHoldTime > 0
UE - Gameplay - Jan 23, 2017Characters on the client can jump indefinitely when using a Jump Max Hold Time of > 0. It appears that this option is not available on the client. ...
Fix deadlock between sk component and sk build or import
UE - Editor - Content Pipeline - Import and Export - Nov 27, 2024Fix deadlock when skeletal mesh component is shown in the detail panel with physics body section category open and the skeletalmesh is re-importing or doing any other asyc task that need the game th ...
Unwanted black boundaries are displayed in a vertical split-screen with 3 players.
UE - Gameplay - Dec 2, 2019Floating point error from UGameViewportClient::SplitscreenInfo causes this issue. FMath::TruncToInt( 3240 /*ViewportSize*/ * 0.333f/*Ratio in SplitScreenInfo*/ ) = 1079 I suggested a following t ...
Spatialization no longer occurs when Non-Spatialized Radius is set above 0
UE - Audio - Sep 13, 2016Audio spatialization no longer occurs when Non-Spatialized Radius is set above 0 in a sound actor (instance or in a sound cue). I could not reproduce this issue in UE4/Main. ...
Specular Scale 0 on Light still affects Groom asset
UE - Rendering Architecture - Jul 30, 2025When a light's Specular Scale is set to 0, the specular still affects hair / groom assets. The specular of other assets (like a shiny static mesh in the scene) is properly affected by the change. ...
Crash when making Android package in SlateTextShaper.cpp
UE - Editor - UI Systems - Slate - Apr 7, 2020Crash when outputting garbled text when creating Android package. It did not occur in my colleague's environment using English OS, but occurred in my environment using Japanese OS. This issue should ...
Morph target LOD over 0 not worrking with GPU skin
UE - Rendering Architecture - RHI - Dec 17, 2019I do not know what happen here and I need the help of the rendering team to debug this issue. There is no log at all even with -d3debug If you import the file SK_LOD_Morph_Working.fbx its a similar ...
Area scattering defaults to 0.01 spacing when input is invalid
TM - Tools - Dec 18, 2025If the user provides an invalid input for Area spacing (for example, using the hotkey 'R' to check the raytraced image), the spacing defaults to a value of 0.01m. Depending on the size of the Area s ...
Setting Fixed Frame Rate Prevents Particle Collision In PIE, Standalone, and Packaged Game
UE - Graphics Features - Oct 12, 2016If you set the project to use a fixed frame rate, particle collision no longer works. ...