Unreal Engine Issues
Unreal Engine Issues
Key input by Sequencer is missing in FBX output of parent-child actors
UE - Anim - Sequencer - Nov 15, 2021This problem did not occur in 4.27.0. Animation is not output when outputting a hierarchical structure. Actor(A) ┗Actor(B) ┗Actor(C) This is how the attachments are registered, and the ke ...
Shader Model 5 and Tessellation causes unintended effects on Linux
UE - Platform - Linux - Jul 6, 2016Using Shader Model 5 and tessellation on Linux gives strange results that are not present when used on Windows ex: 1) When using Shader Model 5 on Linux, turning on Translucent blend mode and Tesse ...
Cannot use legacy UE types on Mac, Linux and other platforms
UE - Foundation - Core - Aug 30, 2016On Windows and Xbox we have special header files to re-enable legacy UE types, such as DWORD. On Linux, Mac and other platforms there is no such mechanism. This prevents us from compiling plug-ins w ...
[CrashReport] UE4Editor_PackageDependencyInfo!FPackageDependencyInfo::InitializeDependencyInfo() [packagedependencyinfo.cpp:339]
UE - Foundation - Core - Mar 6, 2017This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: DepPkgInfo->bIni ...
Physics Handle - Angular Damping option has an incorrect tooltip
UE - Simulation - Physics - Sep 1, 2017there is a wrong tooltip for Angular Damping option in the details panel for the Physics Handle, the tooltip describes it as Angular Stiffness. This issue is not a regression Versions Tested: 4.15. ...
Calling Finish Recording Output causes a crash in PIE
UE - Audio - Mar 23, 2020The Finish Recording Output node from the Audio Mixer BP Library crashes due to an invalid Path input. This is a regression from 4.23.1 (CL-9631420). This was reported and tested in 4.24.3 (CL-115 ...
High Precision Tangent Basis & Use Full Precision UVs on Skeletal Meshes reset after reimport
UE - Editor - Content Pipeline - Datasmith - Importer - Sep 17, 2020Reimporting a skeletal mesh causes "use high precision tangent basis" & "use full precision UVs" to reset and no longer being applied to the mesh. Reported and tested in version 4.25.3(CL 13942748) ...
Favorite Levels menu is hidden if Recent Levels menu was cleared
UE - Editor - Workflow Systems - Aug 23, 2024This issue is caused by the "File > Favorite Levels" menu only showing up if there are 1 or more recent levels. Once that list is cleared, the "Favorite Levels" menu is never added to the "File" men ...
LevelSequenceActor transform offset for Sequencer lost on value changed
UE - Anim - Sequencer - Nov 17, 2025Toggling Lock, Pin, Ignore on subsequences or adding new transform key on a character inside a subsequence the Actors lose the LevelSequenceActor transform offset they have at preview and go back to ...
Unexpected Collision Response When Nesting Primitive Components with auto-weld enabled and physics disabled on children. The root primitive falls through floor even though it is set to block all.
UE - Simulation - Physics - May 27, 2025Context Auto-weld makes it so if a child is attached to a parent, the two bodies will be joined into a single rigid body. Physic settings like collision profile and body settings are determined by t ...