Unreal Engine Issues
Unreal Engine Issues
[CrashReport] ULevel::GetWorldSettings - UMaterialFunctionThumbnailRenderer::Draw
Tools - Oct 30, 2017This is a common crash that has occurred since at least 4.16. The callstack is nearly identical to [Link Removed], which appears to be fixed in 4.18; and [Link Removed], which has not. The differen ...
Unknown force is applied to the cloth when changing the skeletal mesh LoD with cloth.
UE - Simulation - Physics - Character - Jul 11, 2019There are 3 issuesEach particles don't restore its previous position. Which is for calculating velocity by verlet iteration.The previous transform is cleared by current transform. It provides zero v ...
Failed to build in Github UE4.27.0.
UE - Simulation - Physics - Aug 30, 2021Failed to build UE4.27.0 with Win64/Development Editor. Can avoid this error that excluding the project from build configuration. (Solution UE4->Properties->Configuration Properties->Configuratio ...
MovieRender Pipeline Skips Output Frames during GC
UE - Anim - Sequencer - Jun 8, 2020This is being seen in the wild... can release a temporary fix until 4.26 when we can change the headers and fix it for real. ...
Speedtree shader node broken in a Shipping package.
UE - Graphics Features - Jul 6, 2018I attached the 4.19 and 4.20 version of the project. The trees have no leaves when packaging with Shipping in 4.20 preview 5. It works fine in 4.19. ...
Reintroduce UE4 Material Layer drag & drop behavior in UE5
UE - Rendering Architecture - Materials - Oct 19, 2023This behavior has changed from UE4 to UE5 due to a fix to an unrelated bug ([Link Removed]). Reintroduce the old behavior without causing a regression that reintroduces Ben's fixed bug. ...
COTF has issues with out-of-source projects
It is expected that cooking, including COTF, will fix-up all string asset references. There were a few reasons this wasn't happening, but we should get these fixes into 4.15 as the impact was worst ...
Typo in source version of OpenGLWindows.h
UE - Platform - Mobile - Jul 17, 2018The type definitions for the Enum Macros glObjectLabelKHR and glObjectPtrLabelKHR are misspelled. Working in 4.19.2 Broken in 4.20 Tested 4.19.2 (CL - 4033788) and 4.20 (CL - 4214897) ...
Game start slowing down when there are more than 10 sprites in the level
UE - Gameplay - Paper2D - Apr 10, 2018Sprites seem to be drastically affecting FPS in 4.19 projects on Mac devices. ...
Crash on exit with NULL FTextRenderComponentMIDCache
Suggested fix is to relocate the Super::PreExit() call to the end of UGameEngine::PreExit() so that level streaming can be safely flushed before the MID cache is cleaned up. ...