Unreal Engine Issues
Unreal Engine Issues
Apply mesh paint Blueprint instance changes and save fails
UE - Rendering - Architecture - Materials - Jun 22, 2026After mesh painting on a BP Static Mesh Actor, and "Apply instance changes to Blueprint" the added virtual texture is removed with the log:LogTexture: Display: Building texture TwoD: /Game/FirstPers ...
Nanite Tessellation Artifacts With Landscapes
UE - Rendering - Graphics Features - Nanite - Dec 4, 2024There seems to be an issue with how Nanite tessellation and Landscape interact with two sided landscapes. When the camera's near clipping plane is past the landscape's surface the displacement of th ...
Anim Notify States are ended when CustomTimeDilation is set to zero
UE - Runtime - Animation - Oct 12, 2022UDN link: https://udn.unrealengine.com/s/question/0D54z00008BEDfJCAX/set-actor-time-dilation-to-0-during-a-animation-notify-state-cancel-it?fromCase=1 Notify gathering functions (e.g. UAnimSequence ...
Unable to select SimplePivotPainterExampleMat Instance's parameter settings if Param button is disabled
Tools - Aug 31, 2017When going through the engine content you are unable to select SimplePivotPainterExampleMat Instance's parameter settings if Param button is disabled. If the button is enabled the settings appeared ...
Check inside FAssetSourceControlContextMenuState/FPerforceSourceControlProvider
UE - Editor - Workflow Systems - Oct 31, 2023The async execution from within the context menu state is not cancelled properly when closing the context menu. This means that when rapidly opening and closing context menus there will be corruptio ...
Crash using Custom HLSL Node with Empty Shader Directory
UE - Graphics Features - Jul 13, 2017A crash is occurring when adding an empty shader directory when using the custom node within the material editor. This crash is preventing some users from opening their projects that use this workfl ...
[CrashReport] UE4Editor_Engine!FBaseBlendedCurve<FAnimStackAllocator>::InitFrom() [animcurvetypes.h:364]
OLD - Anim - Jul 5, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Source Context: 349 } 350 351 ...
LIVE: EDITOR: FBX: Combined Meshes Flag does not work when importing multiple LODs in a single FBX
UE - Editor - Content Pipeline - Import and Export - Oct 10, 2014BRANCH: MAIN CHANGELIST: 2322258 PLATFORM: Windows DESCRIPTION: When importing a mesh into the editor if there are multiple LOD setup meshes in a single FBX they will not import as a single asset w ...
Python crash the engine at exit.
UE - Editor - Oct 25, 2022A UDN reported various crashes at exit in the embedded Python library. I was able to repro the issue in Release-5.1 and trace it back at the point where python runs its garbage collection in Py_Fina ...
Clicking the GameMode Override dropdown in the World Settings tab crashes the editor
Tools - Jun 25, 2015Clicking the GameMode Override dropdown in the World Settings tab crashes the editor. Also occurs with any of the sub-options for the GameMode. Does not appear to occur if there is not already an ex ...