Unreal Engine Issues
Unreal Engine Issues
UMovieSceneUserImportFBXSettings is not a blueprint type.
UE - Anim - Sequencer - Jan 20, 2021This class is needed for FBX importing through blueprints. It needs the BlueprintType class specifier. ...
USourceControlHelpers::GetFilesInDepotAtPath is broken
UE - Editor - Apr 24, 2023The p4 files command is used to grab the list of depot files. This does not have a client path, but the parse records function called in FPerfroceGetFileListWorker::Execute (ParseRecordSetForState) ...
Platforms that allow for configurable VOIP sample rates do not respect config values
UE - Online - Jan 8, 2019Because of when GetEnumValueFromString (called by GetVoiceSampleRate) executes for certain modules at load time, the global enum master list is empty, which leads to the config value not being parsa ...
Oodle CompressionLevelNameMap is missing an entry for Optimal5, leading to a crash in the texture editor
RAD - Oodle - Aug 2, 2024Due to a missing string in CompressionLevelNameMap in OodleDataCompression.cpp, it is possible for LevelName to be left uninitialised after parsing the compression effort, which causes a crash when ...
Cannot create installed build on Linux
UE - Foundation - Build - Rocket (Installed Engine) - Sep 16, 2016See log attached to [Link Removed]. NetworkProfiler does not compile on Linux due to a missing assembly. We shouldn't need to ship it on Linux anyway. ...
Undetected infinite loop on spline creation
UE - Gameplay - Blueprint Compiler - Mar 16, 2019It is possible to create spline logic that will not be detected by infinite loop detection. Also hangs if executed in Event Graph on Begin Play. If saved but not compiled and placed in Editor Star ...
Mac editor mobile preview crash with MSAA on
UE - Platform - Mobile - Mar 1, 2021setting GSupportsTimestampRenderQueries=false or r.GPUStatsEnabled=0 can fix it ...
Pawn Velocity dramatically different on server and client with Client Authoritative Position
UE - Gameplay - Sep 28, 2018The server is not seeing the correct walking animations on each of the clients and after doing some digging, we found that the Pawn->GetVelocity() function is returning something drastically smaller ...
Rect light LTC textures fail to load when cooking with bSharedLinearTextureEncoding enabled
UE - Texture - Apr 2, 2025When running a build with bSharedLinearTextureEncoding enabled, View.GGXLTCMatTexture and View.GGXLTCAmpTexture are pointing at the black texture fallback, which affects correctness of rect lighting ...
Vector VM - Crash / memory stomp when using > 255 external function calls
UE - Niagara - Aug 12, 2025The Vector VM has only every supported a byte's worth of external function calls, when we blew the limit it would index into the incorrect VM call. The new VM will also overwrite memory when exceed ...