Unreal Engine Issues
Unreal Engine Issues
Crash when reimporting SkeletalMesh with custom LOD
UE - Editor - Content Pipeline - Import and Export - Oct 29, 2021In the case of "Reimport Base Mesh + LODs", there is no crash. ...
UBT crashes when doing an incremental build
UE - Foundation - Cpp Tools - UnrealBuildTool - Aug 9, 2017There is a consistent crash when incrementally compiling headers containing generated code. The code for launching UHT accesses a property which is null when compiling with the UBT makefile. ...
Crash When Building Lighting for a Level with Previously Purged Lightmaps
UE - Graphics Features - Feb 27, 2019If you go into World settings, select Force No Precomputed Lighting, rebuild lighting to purge lightmaps, uncheck Force No Precomputed Lighting, save level, quit, reload project and try rebuilding l ...
Crash when calling a RPC function with a TSet or TMap parameter on a client
UE - Networking - May 11, 2018Calling a RPC function with a TSet or TMap parameter on a client causes the editor to crash. Regression?: No This also occurs in 4.18 ...
Crash when capturing attribute spreadsheet of Niagara GPU Particle with raytracing enabled
UE - Niagara - Jul 8, 2021Also, NiagaraDebugger crashes the moment I enable GPU Particle Readback. ...
Cloth Asset - Crash when importing morph targets into clothing
UE - Simulation - Visual - Oct 20, 2025The sim morph import has been broken after a change to make it work for cooked assets. Ticking the Import Sim Morph Targets checkbox crashes as soon as a skeletal mesh with morph target is specifie ...
Crash opening packaged project on iOS
UE - Platform - Mobile - Oct 24, 2016Opening a packaged project for iOS will crash. ...
Post Process Animation Blueprint triggering a crash when compiled
UE - Anim - Runtime - May 4, 2022User Description: "Crash happens only while trying to compile parent character's blueprint which contains no specified skeletal mesh. Child character containing mesh that uses mentioned post process ...
Packaged game Crashes on android after entering "Help" command twice
UE - Platform - Mobile - Feb 14, 2017If the console command "Help" is used twice on a packaged android project, the packaged project will crash on the device ...
Crashes in movie player on Android
UE - Platform - Mobile - Apr 23, 2015There are a number of reported movie crash issues, but this report likely covers the main cause. Garbage collection changed in Android 4.0 and we are triggering a check that does not happen with ba ...