Overriding a function but didn't call the parent version

Why: When you override a parent function (like BeginPlay or Tick), the parent's logic usually still needs to run. Forgetting to call Parent: <FunctionName> can break initialization. Fix: In your overridden function, right-click in empty space → search for 'Parent: <FunctionName>' (e.g. Parent: BeginPlay). Add that node. Wire it to the exec input early in your function, before your custom logic.

Function name collision with parent class or duplicate

Why: You created a function named '{fn}' that conflicts with one already defined — either by the parent class (which you should Override instead) or another function in this same Blueprint. Fix: If you meant to override a parent function: delete your function, then right-click in My Blueprint → Override Function → pick '{fn}' from the list. If you meant a separate function: rename yours to something unique (e.g. '{fn}_Custom').

Parent Class

The base class your Blueprint inherits from (e.g. Actor, Pawn, UserWidget). Determines available functions and components.

UserWidget

Parent class for Widget Blueprints. Override Construct, Tick, OnPaint, etc.

DetachFromActor — detach actor from parent

K2_DetachFromActor.

SetRelativeRotation on component — set component rotation relative to parent

SetRelativeLocation on component — set component position relative to parent

K2_SetRelativeLocation. USceneComponent method.

Slot

The container-specific properties of a child widget (anchors, padding, alignment). Each widget has different Slot fields based on its parent.

Anchor

Defines where a Canvas Panel widget pins to its parent (corners, edges, center). Anchored UI scales with screen size.

SpawnActorFromClass pin reference — Class SpawnTransform Owner ReturnValue

K2Node_SpawnActorFromClass. Class pin is a class reference dropdown.