ForEachLoop does not save structure changes in the loop body

UE - Gameplay - Blueprint - Feb 2, 2015

If a ForEachLoop node is used to cycle through an Array of Structures, using the Array Element output of the Loop node to set the members of the structure does not save the changed values. Workarou ...

Landscape Visibility Mask Rendering with Missing Landscape Components when Deployed to Mobile Device

UE - Graphics Features - Apr 8, 2015

Landscape Material renders with missing components when using a 'Landscape Visibility Mask' and deploying to a mobile device. I have found this issue now with an Android and iOS device. I was able ...

Camera jitter when using Crane Rig with Look At

UE - Anim - Sequencer - Jul 21, 2016

Camera jitter when using Crane Rig with a Cine Camera that is using the Look At Functionality ...

Editing InlineEditConditionToggle variable value causes editor to crash

Tools - Oct 7, 2016

Editing property with InlineEditConditionToggle meta specifier causes the editor to crash. Workaround: Calling Super::PostEditChangeProperty after property changing code prevents crash from occurri ...

Black flickering on Mesh particles when the Renderer is set to a non-default Facing Mode or using Orient Mesh to Vector and when using Particle Position in the Material's WPO

UE - Niagara - Jul 23, 2020

Black flickering on Mesh particles when set to a non-default Facing Mode or using Orient Mesh to Vector and when using Particle Position in the Material's World Position Offset ...

Default values specified for local BP variables of type DateTime and Timespan don't actually work

UE - Gameplay - Blueprint Runtime - Nov 6, 2020

Have attached examples of this in action, including breakpoints showing the FDateTime::Ticks count as zero. Also showed that this is an issue for the existing GetYear/GetMonth/GetDay methods (and an ...

Images Rendered out by Movie Render Queue has much more visible Banding issue in gradient

UE - Virtual Production - Rendering - Color - Aug 21, 2021

I did some experiment locally. At very first I thought it's the image compression issue, since the issue is also obvious while rendered out images as JPG and PNG, there's no image compression qualit ...

Crash when duplicating component with Instanced property initialized with CreateDefaultSubobject

UE - Framework - Feb 2, 2024

An editor crash can be observed when copy-pasting an actor with an actor component with an instanced object property when set to a non-default value. Detailed steps to reproduce are provided below. ...

empty default value for a blueprint member variable in a custom k2node

UE - Gameplay - Blueprint - Feb 9, 2024

User is attempting to find a blueprint member variable's default value in their implementation of UK2Node::NotifyPinConnectionListChanged(). but the expected value in FBPVariableDescription is empty ...

Adding new elements to an array in code does not update in a class based blueprint on compile

UE - Gameplay - Blueprint - May 5, 2015

When adding elements to an array inside a code class, blueprint instances of the class do not have their array updated after a hot reload. ...