Unreal Engine Issues
Unreal Engine Issues
Full Body IK does not work properly when root bone has large scale
UE - Anim - Rigging - Control Rig - Jul 20, 2023FBIK becomes extremely unstable when the root bone scale has a value other than 1. ...
Sequencer- 'Dynamic Binding' SoftObjectPtr parameters fail to resolve after reloading editor
UE - Anim - Sequencer - Aug 12, 2024When reloading the editor and a level where a sequence has a dynamic binding with a soft object ptr parameter to an actor in the same level, the director blueprint will recompile on load of the leve ...
Launch on to HTML5 fails in browser with Expression (mp_Table) failed in LowLevelMemoryMap.h
UE - Platform - Mobile - Jun 16, 2017I was able to repro this on both FF and Chrome. I have the latest FF 64-bit and was running into this after I deleted my intermediates, ran GenerateProjectFiles.bat, and built UE4 in VS. ...
Nested inline UObject properties don't expand in Actor blueprint detail panel
UE - Gameplay - Components - May 9, 2016Customer provides details, including a fix for the problem. See UDN post attached. ...
Folder Renaming is not Case Sensitive
UE - Editor - Content Pipeline - Content Browser - Mar 28, 2018Renaming folders is not case-sensitive Previously fixed in 4.12, re-appeared ...
"Assign" node can cause a crash when placed in a graph
UE - Gameplay - Blueprint Compiler - Apr 26, 2022This may only happen with upgraded projects that went from 4.27 up to 5.0.1 ...
Usd wrapper uses TCHAR_TO_ANSI conversions causing path issues with basic extended ASCII character set
UE - Editor - Content Pipeline - USD - Jun 12, 2024It seems that a simple change from TCHAR_TO_ANSI to TCHAR_TO_UTF8 in UE::FUsdStage OpenStageImpl() fixes the issue. ...
[AI] Navigation System can be constructed in situations where the NavigationObjectRepository subsystem is not valid
UE - AI - Navigation - Feb 7, 2025Investigate and fix all calls where the Navigation System is constructed without the NavigationObjectRepository subsystem being valid. ...
[CrashReport] UBlueprintGeneratedClass::AddReferencedObjectsInUbergraphFrame()
UE - Gameplay - Blueprint - Nov 2, 2017This is a common engine crash that has occurred since at least 4.16. Users have not provided any useful descriptions of their actions when the crash occurred. The callstack shares some similaritie ...
Crash in TMap struct deserializer
UE - Foundation - Core - Sep 20, 2016When deserializing a TMap<FString, FString> with the JsonStructDeserializer, the Engine crashes. ...