CLONE - Project does not cook with actors containing ModularSynth component

UE - Audio - Sep 13, 2017

A project does not cook with actors containing ModularSynth component. The error is a follows UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: begin: stack for UAT UATHelper: Pack ...

Ensure when using ellipsis overflow method with very small Slate text boxes

UE - Editor - UI Systems - Slate - Aug 12, 2024

The Ellipsis overflow method on text widgets can cause an ensure to trip as a result of a render batch being sent with no indices. We could guard against this in SlateRHIRenderingPolicy by checking ...

Crash when changing the World Grid Material to Unlit

UE - Graphics Features - Mar 13, 2017

A crash occurs when setting the WorldGridMaterial from the Engine Content to the Unlit Shading Model and pressing apply. ...

Packaging with plugins GearVR and GoogleVR together cause build failed with multiple definitions of GetHMD()

UE - Platform - XR - Sep 7, 2016

Packaging with plugins GearVR and GoogleVR together cause build failed with multiple definitions of GetHMD(). Log attached for build error and error portion plugged into the callstack box. ...

crash at checkUERenderCommandPipeIsReplaying in RenderScenecpp

UE - Rendering Architecture - Jul 15, 2024

Drawing a material to a render target when that material samples an RVT can cause an editor crash. In our testing, the check() did not always occur on the first PIE session, but would always occur ...

Destructing NiagaraParameterStores causes multi threading write conflict

UE - Niagara - Jan 26, 2022

FNiagaraParameterStore::UnbindAll() may be called from both GameThread and RenderingThread. Each may modify the same Binding array, it causes infrequent crashes. In my environment, I was able to r ...

Editor Crashes when working in QAGame TM-Sequencer_EventTrack - TCString<TCharType>::Strlen(InName)

UE - Anim - Sequencer - Jul 12, 2017

Editor Crashes when working in QAGame TM-Sequencer_EventTrack - TCString<TCharType>::Strlen(InName) This Assert happens randomly throughout the repro-steps. I am unsure what about the process cause ...

Editor crashes while switching to paint mode if material has a grass output and landscape visibility mask

UE - LD & Modeling - Terrain - Landscape - Aug 10, 2016

Editor crashes while switching to paint mode if material has a grass output and landscape visibility mask. Frequency: 3/3 ...