Unreal Engine Issues

Clearing SubUV Animation assigned texture Crashes Engine

Clearing the texture field in the SubUV Animation after creating it from a texture in the content browser will crash the engine. ...

Increment and decrement nodes return the incorrect value

Increment and decrement nodes return the incorrect value User Description: Getting the result of the Increment Macro seems to be incrementing the variable twice. Very confusing. Is this normal? ...

Unable to launch project from Visual Studio using installed engine build

When a code project's engine association is switched to a local binary version of a source engine, the project will fail to open from within Visual Studio. Error message says that UE4Editor-Project ...

Phaser module is malfunctioning

The phaser module that is part of the new Audio Engine causes audio from a Sound Cue to mute after playing for one second. The user states that the issue comes from the Phaser.cpp file producing a N ...

Rotational root motion accumulation to worldspace can add invalid translation

When a character is playing an animation that contains rotational root motion and that character is placed on a moving actor, an invalid translation component is introduced to the worldspace positio ...

Python crash the engine at exit.

A UDN reported various crashes at exit in the embedded Python library. I was able to repro the issue in Release-5.1 and trace it back at the point where python runs its garbage collection in Py_Fina ...

When duplicating the last point in a closed-loop spline, its metadata is inserted at the wrong index

The SplineComponentVisualizer allows users to alt+drag on a spline point to duplicate it. When this is done on the last point of a spline marked as "closed-loop", the new point is correctly added at ...

[CrashReport] Access violation - FBlueprintCompilationManagerImpl::ReinstanceBatch

This is a trending crash in the 4.17 Preview. Unfortunately users have not provided any additional information. There is no record of this crash occurring in 4.16.2, so it is possibly a regression. ...

WP HLOD Crash on Small Cell Sizes

[CrashReport] UE4Editor-MetalRHI.dylib!FMetalDeviceContext::CreateDeviceContext()

Error message: SEGV_MAPERR at 0x3 Source Context: Most recent user affected CL: 3249277 Logs: [Link Removed] [Link Removed] [Link Removed] [Link Removed] CrashReporter User Descriptions:Just i ...