IsInputKeyDown — check if a specific key is held down this frame

Possess — make a Controller possess a Pawn

string

string

UnPossess — detach Controller from currently possessed Pawn

Less (float) — A < B

Blueprint references a component that was deleted

Why: A node tries to access the '{comp}' component, but it was deleted from the Blueprint's SCS (Components panel). The reference is dangling. Fix: Open the Blueprint, go to the Components panel (top-left). Check if '{comp}' is there. If missing: either re-add it (drag from Add Component) or remove all nodes that reference it. If renamed: select the node, find it in Details → Component dropdown → pick the actual name.

UMG widget property binding references a removed function

Why: A widget's Text/Visibility/etc was bound to a function that no longer exists in your Widget Blueprint. Fix: Open the Widget Blueprint. Select '{widget}' in the hierarchy. In Details panel, find the broken binding (red exclamation mark next to a property). Click the bind dropdown → pick a current function, or unbind + use a direct value.

Set (Collection)

An unordered collection with unique elements. (The Set node for writing variables is a separate concept — see the entry for 'Set'.)

Loop with no exit condition — will hang the game

Why: Function '{fn}' contains a ForLoop or WhileLoop whose condition is never reached or whose body never updates the counter. The game will freeze when this code runs. Fix: If WhileLoop: ensure the body modifies the condition variable so eventually the condition becomes false. If ForLoop: check the Index range — Last Index must be >= First Index. Add a Print String of the index inside the loop body so you can see if it's actually iterating.

EventAnyDamage — receive any type of damage