Actor Not Ticking on First Streaming Level Load When Using Level Streaming Volume

UE - Gameplay - Apr 11, 2017

Actor's do not appear to be ticking when a level is first loaded when using a Level Streaming Volume. The Tick event will fire on the second and subsequent attempts. Edit: After further testing, th ...

material clamps with Panner for HTML5 when texture size is not power of two

UE - Platform - Mobile - Apr 25, 2017

When launching for HTML 5 and using a texture or image that is not a power of two in size the texture does not pan correctly, instead of panning as expected, the material clamps and will remain that ...

Crash occurs with gameplay tag map variable compiles with default value changed

UE - Gameplay - Blueprint - Jun 28, 2017

there is a crash that occurs with gameplay tag map variable compiles with default value changed. This issue occurs no matter what the secondary value of the map is. I was unable to test this issue i ...

Copying values of an array created through C++ does not copy all values

Tools - Aug 24, 2017

Copying values of an array created through C++ does not copy all values, only the first value is copied over. This is different than an array that is created in blueprints when those are copied they ...

Mobile MSAA breaks Modulated Shadows on OpenGL ES 2

UE - Platform - Mobile - Apr 2, 2018

UPDATED DESCRIPTION When enabling Cast Modulated Shadows on a Directional Light and using Mobile MSAA on Android OpenGL ES 2, shadows from the Directional Light do not render when dynamic objects ar ...

Textures are Blurry when Scaling an Actor While r.Streaming.DropMips is Set to 2

UE - Graphics Features - Jul 17, 2019

If a BP actor containing textured static meshes starts with a small transform scale, when scaled up, the texture streamer fails to load in the higher mips and the texture looks blurry. Working as e ...

Color obtained in Retainer Box differs from color visible in material preview when set by Vector Parameter

UE - Graphics Features - Aug 12, 2019

Color set by Vector Parameters in a material differs in preview from color obtained in retainer box. Obtained color does not match either sRGB or Linear values of color visible in material preview. ...

"Warning: GEditor isn't valid! Particle reset commands will not work for Niagara components!" when QA-PostProcessing is opened with -game

UE - Niagara - Oct 8, 2019

The following warning will be present when running QAGame QA-PostProcessing with -game:LogNiagaraEditor: Warning: GEditor isn't valid! Particle reset commands will not work for Niagara components! ...

STAT_AI_BehaviorTree_InstanceMemory is sometimes wildly inaccurate

UE - AI - Jun 10, 2020

From the UDN thread: Turns out this is caused by the way this stat was implemented for the FBehaviorTreeInstance struct: 1) You call IncMemoryStats on construct, before the struct is populated with ...

Crash editor when many sequencers are opened continuously

UE - Graphics Features - Dec 3, 2020

Get crashed in editor when opening many sequencers using the EditorUtilityWidget,. It's not in UE4.25.3, but it crashes in UE4.25.4. And it only occurs when NVIDIA Aftermath (r.GPUCrashDebugging=1) ...