Unreal Engine Issues
Unreal Engine Issues
Crash when connecting to Source Control
Tools - Apr 27, 2016Attempting to connect to Source control causes the editor to crash immediately. According to Travis.L this only affects Binary builds. Regression: YES - Connecting to source control worked as expec ...
FLowLevelMemTracker::GetTagAmountForTracker with CustomProjectTag returns 0 always
UE - Foundation - Core - May 7, 2020FLowLevelMemTracker::GetTagAmountForTracker with CustomProjectTag returns 0 always. Because of FLLMTracker::FLLMThreadState::GetFrameStatTotals don't amount to about CustomTags. Following code will ...
Crash trying to convert skeletal mesh to Nanite
UE - Graphics Features - Nanite - Mar 6, 2025In SkeletalRenderNanite.cpp / FDynamicSkelMeshObjectDataNanite::UpdateBonesRemovedByLOD, bone indices are of type FBoneIndexType (defined as uint16 from BoneIndices.h), instead of int32. On line 18 ...
Insufficient precision of Decode71 function
UE - Rendering Architecture - Shaders - Jun 5, 2025Encode71 and Decode71 in DeferredShadingCommon.ush are functions that convert 8-bit values to 7-bit values and mask values, and licensees have reported that the accuracy is insufficient when usi ...
Large Landscapes cause long PIE start time delays
UE - LD & Modeling - Terrain - Landscape - Jan 29, 2020These delays appear with large Landscapes (for example 8029 x 8029) . The delays only start occurring after the level is saved and reopened. After which PIE start times will be 5 to 15 times longer ...
Unreal Studio: Multi User Viewer Template Menu: Next Arrow Bug
UE - Anim - Sequencer - Oct 11, 2018"There's a bug with the menu where you cant get to the next step (server browser or host) when you have a VR headset plugged and available. The "Next_Btn" button is greyed out on the last step. You ...
Launching on IOS, sessions do not appear in the Session Frontend
UE - Networking - Oct 17, 2018Licensee reports: Dug into this further and our iOS devices aren't receiving any of the handshake messages sent by the Session Frontend (or any other UDP messages for that matter) because multicast ...
Attempting to use the GameplayTags module in a binary code project will result in build failures in Visual Studio.
UE - Foundation - Core - Mar 27, 2015Using the GameplayTags module in a code project created with the binary version of the Engine results in a build failure in Visual Studio. The following error is shown: 1> D:/Epic Games/4.7/Engine ...
Assert when having too many VR devices
UE - Platform - XR - Aug 31, 2018Internal team is encountering a crash when adding too many VR devices. Email thread titled "Re: Crash Logs" The bug is an internal limit of devices the code supports, which is 8. If a controller o ...
LIVE: Manually importing a single LOD created in Maya will rotate -90 degrees
UE - Editor - Content Pipeline - Import and Export - Nov 5, 2014DESCRIPTION: When importing a mesh created with Maya then saving, closing, and reopening the editor, if you add a LOD via the right mouse menu or mesh editor will result in the LOD importing -90 rot ...