Unreal Engine Issues
Unreal Engine Issues
Shader compiler errors when using enclosed local variables in a material while ray tracing is enabled
UE - Rendering Architecture - RHI - Jan 23, 2020A licensee is seeing an issue with a couple of post process materials after enabling ray tracing. While the materials presenting the issue fail to compile for different reasons, they both refernce t ...
[CrashReport] Crash CheckForWorldGCLeaks() - EditorDestroyWorld()
UE - AI - Sep 8, 2017This is a somewhat common but longstanding Mac crash that has affected users since at least 4.13. Recently in 4.17.1, the crashes are all occurring in various ARKit projects User DescriptionsI add ...
The Editor crashes when adding an element to a TMap that uses an unhashable struct as a key
UE - Gameplay - Blueprint - Feb 28, 2017The Editor crashes if an unhashable struct is used as a key in a TMap and a new element is added to the TMap in a Blueprint. ...
Packaged ThirdPerson template with "start in vr" enabled packaged and launched with "-nohmd" crashes
UE - Platform - XR - Mar 31, 2021The callstack is not XR-specific, it's just the engine trying to secure the audio device on startup, windows failing to return one, and the app not being able to continue safely. The crash does not ...
SIGSEGV: invalid attempt to access memory at address 0x3
UE - Platform - Apple - Jan 30, 2015Crash Report: [Link Removed] ...
Assets containing TSet or TMaps fail to Nativize
UE - Gameplay - Blueprint Runtime - Dec 12, 2016Multiple compile failures while attempting to nativize the QABP_Containers asset in QAGame. Errors:[2016.12.12-15.20.04:831][486]UATHelper: Packaging (Windows (64-bit)): xgConsole: QABP_Containers_ ...
Crashes upon project start up
Tools - Feb 10, 2015Crash Report: [Link Removed] After downloading latest revision, user is no longer able to open project due to constant crash. ...
Cross building UE4Editor from Windows to Linux has incorrect runtime dependencies on DSO's
UE - Platform - Linux - Jan 23, 2019Editor that was cross-built on Windows reportedly cannot start (using a Windows Subsystem for Linux or a VM). ...
Timelines do not parse "," in numeric fields the same as the rest of the editor
UE - Editor - Oct 23, 2023Datasmith Export Bug with Camera Target
UE - Editor - Content Pipeline - Datasmith - Exporters - Mar 7, 2025Potential bug was encountered when exporting vray cameras and their targets that have been path-constraint to corresponding splines. The resulting export file shows no camera targets; hence, missing ...