Unreal Engine Issues
Unreal Engine Issues
[CrashReport] Linux crash - llvm::TargetLowering::LowerCallTo()
UE - Platform - Linux - Jul 20, 2017This is a common Linux crash in 4.16.2. ...
Physics simulation shows strange behavior with specific skeletal mesh configurations
UE - Simulation - Physics - Mar 3, 2017PhAT is inconsistent on when it does and doesn't apply scale to Constraint positions. This leads to cases where the positions provided create constraints that may not work when the Preview Skeletal ...
Crash on paste of subcategory in the details panel
UE - Editor - Dec 14, 2023Sessions Frontend crash when launching the "renderer" automation section without ray tracing enabled
UE - Graphics Features - Jul 7, 2022Looks like we only need a way to disable the usage of these tests from running if ray tracing is disabled as they are ray tracing only tests. ...
Unstable automation tests in "Standard Tests" list.
UE - Rendering - Architecture - Feb 20, 2026The two following automation tests found in the "Standard Tests" list hit exceptions & cause the editor to crash:System->Physics->Interface->BodyInstanceShaders->ShaderPreprocessor->BuiltInMacros ...
Undo change to Rest Offset causing crash in Static Mesh Editor
UE - Runtime - Simulation - Aug 8, 2023When undoing any change to Rest Offset for a collision mesh the engine will crash. This issue is occurring in Binary //UE5/Release-5.3 @ CL 26560699 This issue is occurring in Binary //UE5/Release- ...
AEditorFunctionalTest causes assert in WP map
UE - World Creation - Worldbuilding Tools - World Partition - May 9, 2022"Assertion failed: Pair != nullptr " when trying to create a basic test with AEditorFunctionalTest in a WP map. ...
Android Projects packaged for arm64 crash on device.
UE - Platform - Mobile - Aug 9, 2016This issue was discovered while smoke testing Release 4.13 for Preview 2. ...
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 while scrolling through language options in Packaging settings
Tools - Jul 21, 2017This is a trending crash in the 4.17 preview. This is a regression Broken: 4.17.0-3528061 Worked: 4.16.2-3514769 User Descriptionsproject/settings/intern..language. Crashed it just by scrolling t ...