Crash: Changing Material Property Overrides of Material Instance

UE - Graphics Features - Dec 14, 2016

When a material has a static bool parameter AND this is overridden in a material instance, Trying to change Blend Mode or Shading Model under the Material Property Overrides crashes the editor. Thi ...

MaterialExpressionSubtract doesn't compile in plugins

UE - Graphics Features - Mar 23, 2016

Adding the following code to a plugin source file prevents the associated project from compiling in visual studio whereas this code will compile successfully inside of a class added directly to the ...

HTML5 project does not load using itch.io

UE - Platform - Mobile - Apr 25, 2016

HTML5 projects are not loading properly on itch.io, this may be occurring on other HTML5 upload websites. Adding https into the myproject.html does not seem to make a difference, as Kafu has recomme ...

Landscapes do not Render when used with Lighting Scenarios on Mobile

UE - Platform - Mobile - May 15, 2017

Landscapes disappear using Lighting Scenarios when deployed to a mobile device. When playing in the editor using the mobile previewer, everything looks as expected. It only occurs when deployed to ...

ParticleCutout don't work when AlphaThreshold is 0

UE - Graphics Features - Dec 16, 2016

UParticleModuleRequired::PostEditChangeProperty use "AlphaThreshold > 0". So, if AlphaThreshold = 0, particlecutout don't work. ...

IPhonePackger re-signs app with old signature format that makes users get the warning popup on iOS

UE - Platform - Mobile - Jan 27, 2021

Apple forces developers to code sign an app using the latest code signature format and IPP needs to support it. a related link: [Link Removed] ...

NavMesh generation should not care for Actors that are hidden in the Editor.

UE - AI - Navigation - Aug 5, 2025

The problem is that the Cube is still loaded but "HiddenEd". It's AActor::bHiddenEdLayer property is set to true by the WorldPartition System. The Actor is dirty which makes the WP system pin it (wo ...

Engine Scalability view distance settings are not being reflected accurately in the viewport

UE - Graphics Features - Jan 30, 2017

The foliage in the map appears to be unaffected by the changes in view distance. The scalability settings are changing the cvars to the right values but the change is not being reflected on screen ...

Sharing TransitionRule of multiple AnimStateTransitionNode, when AnimBP is opened it becomes dirty

OLD - Anim - Dec 15, 2017

Sharing transition rule it will be Dirty when AnimBP opens. When AnimBP is open, "if(BoundGraph->GetOuter () != Node)" is true in FBlueprintEditorUtils::UpdateOutOfDateCompositeWithOuter, BoundGrap ...

Overridding a function with no return value in a ChildBP produces an event instead of a function

UE - Gameplay - Blueprint - Dec 17, 2015

If you have a BP with a function that has no return value, then override that function in a ChildBP, it becomes an event and cannot be used like a normal function ...