Inherited UserWidgets can't create animations that bind to widgets on their parent's WidgetTree

UE - Editor - UI Systems - UMG - Nov 7, 2022

Animating an inherited widget from a child UserWidget class appears to work, but the bindings don't resolve properly and the animation is null at runtime. This workflow should either be supported, o ...

FMath::Eval ignores groupings while solving

UE - Foundation - Nov 8, 2022

This is not a regression. Tested in //UE5/Release-5.0 CL20979098 FMath::Eval ignores groupings while solving problems. This has caused some confusion with users who are expecting the groupings to b ...

Material Layers Ignore Virtual Texture Sampler Restrictions

UE - Rendering Architecture - Mar 25, 2024

Virtual Textures can be assigned to Texture Sample Parameters that are not configured for Virtual Textures, if that parameter is inside of a Material Layer. Also found in Release-5.4, CL 32426910 ...

Input pins of BP node are not updated after a hot reload

UE - Gameplay - Blueprint - Apr 17, 2015

If a code defined function that takes in a parameter is called from blueprints, the BP node will show the input pin for the parameter. If the parameter list is changed after the node is created and ...

Construction script on child actor components not respected in PIE

UE - Gameplay - Blueprint - Jan 14, 2016

Child Actor Components run their construction scripts upon parent's placement in level. However, these specifications are not maintained once PIE is initiated. ...

Child actor component mesh actor does not update transform with child actor component in parent blueprint

UE - Gameplay - Oct 22, 2015

if a child actor component is set to a new child actor at runtime, the actor will not update with the transform of the child actor component in the parent blueprint. ...

promoting a variable to a local variable in another blueprint creates compile error.

UE - Gameplay - Blueprint - Sep 30, 2015

If a local variable set variable is copied/pasted over to a second blueprint and the input pin is promoted to a local variable, compiling the blueprint will cause a compile error to appear until the ...

Child blueprint loses categories after parent is compiled and PIE

UE - Gameplay - Blueprint - Jul 30, 2015

If a parent blueprint is compiled and then play in editor is utilized. The child blueprint will lose categories in it's my detail's pane until recompiled. Note: Licensee reports that variables res ...

Objects parented to a Destructible Mesh within a bp will not follow if the DM is simulating physics

UE - Simulation - Physics - Destruction - Dec 17, 2014

Objects parented to a Destructible Mesh within a bp will not follow if the DM is simulating physics. ...

IgnoreActorWhenMoving node doesn't work if the actor variable is set per instance

UE - Gameplay - Apr 30, 2015

IgnoreActorWhenMoving node doesn't work if the actor variable is set per instance. ...