Unreal Engine Issues
Unreal Engine Issues
GeometryCollectionPhysicsProxy::FieldParameterUpdateCallback() not removing invalid Commands, leading to performance issues
UE - Simulation - Physics - Destruction - Aug 30, 2025GeometryCollectionPhysicsProxy::FieldParameterUpdateCallback() not removing invalid Commands, leading to performance issues. The licensee has provided their analysis: We seem to have stumbled acro ...
Sqlite plugin crash on iOS
UE - Platform - Mobile - Aug 26, 2021Crash opening Infiltrator packaged on Windows for Linux
UE - Platform - Linux - Jan 18, 2017This occurred on packages that were created on different Windows machines. This crash is not occurring on other platforms during our Samples Pass. ...
Niagara Crash After Adding More Than 20 Emitters to a System
UE - Niagara - May 24, 2019The Editor will crash after adding more than 20 Emitters to a system. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6599617 ...
Crash after enabling iOS Metal Desktop Renderering and then enabling iOS SM5 Preview Rendering Level
UE - Rendering Architecture - RHI - Nov 15, 2022Client crashes when executing seamless travel with an active particle system in the level that was spawned at runtime
UE - Niagara - Apr 16, 2019Clients crash when being part of a Seamless Travel if there was an active particle system in the level that was spawned at runtime. If the travel is not seamless, the particle system is placed in th ...
Launching any QAGame map on Linux with an NVIDIA Card crashes at launch
UE - Graphics Features - Mar 11, 2022Workaround: "Start with "-windowed" in your command line until the issue is resolve" Engine does not crash. However, a crash appears when the game is launched in the output log. Issue is occurring ...
Crash when duplicating an UMG Animation and not renaming the Duplicate
UE - Anim - Sequencer - Dec 19, 2018Crash when duplicating an UMG Animation and not renaming the Duplicate Hitting Enter correctly warns the user you have an existing Animation by that name, and doesn't crash Reproduced in //UE4/Rel ...
UnrealMathTest fails when compiled with VS2019
UE - Foundation - Cpp Tools - Oct 10, 2019A crash or breakpoint is triggered when building UE4 with Project Files generated with -2019. Typeinfo.h was changed in MSVC v14.23 to just be typeinfo. ([Link Removed]) There is a pull request t ...
Crash When Building HLODs
UE - World Creation - Worldbuilding Tools - HLOD - Aug 21, 2019Building HLODs causes a crash. This only seems to occur in some levels as shown in the attached project. Found in 4.22 CL# 7053642, 4.23 CL# 7948402, 4.24 CL# 8124506 ...