Unreal Engine Issues

Editor crashes when importing alembic asset

Editor crashes when importing Alembic material asset. The editor will crash once selecting the asset in Windows explorer, before the Import Options window appears. When testing this, we had an ave ...

Launcher installed build is missing the Documentation/Extras folder

Because the extra folders is missing, the HTML help for console commands cannot be generated. ...

Opening a widget blueprint on Linux causes editor to crash

The editor crashes when attempting to open a widget blueprint. ...

Matinee to Level Sequence converter doesn't bind properties

[CrashReport] UE4Editor_PropertyEditor!FDetailCategoryImpl::GetParentLayoutImpl() [detailcategorybuilderimpl.h:168]

This 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: IsValid() [Link ...

VehicleGame fails to package for Linux from Windows

When packaging VehicleGame for Linux on a Windows machine, the packaging fails. ...

Editor primitives render incorrectly in stereoscopic with instanced stereo

Trigger box icons move around when oculus head movement is used. Found in //UE4/Release-Staging-4.13 @ 3090357 QA-Promotion map Edit: 08-22: This affects volumes as well as their editor icons, upd ...

GPU particles no longer work on iOS or TVOS Metal devices

Butterflys do not have a trailing particle effect in BlueprintOffice on tvOS. They DO show a particle effect when played in Mobile Preview in the editor so I have assigned this to Platform for now. ...

GearVR applications show black screen on Adreno devices

Could not repro it on Mali S7 or S6 ...

HTML5 packaging fails with Github couldn't verify LLVM version

Packaging code projects on Mac for HTML5 fails. A lot of Could not verify LLVM version warnings appear in the output log.[2016.06.21-22.27.10:488][413]UATHelper: Packaging (HTML5): UnrealBuildTool: ...