World Context Object Pin Appears on Nodes

On certain nodes, like “Get Player Character” and “Get All Actors Of Class”, when initially placed they do not have a “World Context Object” input pin.

However, at some point (after restarting the editor?), this “World Context Object” input pin suddenly appears on these nodes (see image below). What does this mean? How would this pin be utilized?

25837-worldcontextobjectpinappearance.png

World Context Object is in most of the global function it hidden by default if you do this

UFUNCTION(meta = (WorldContext = "WorldContextObject"))
static void Function(UObject* WorldContextObject)

WorldContexObject will be the blueprint where u call the function in, and it will check the your blueprint is valid to do the function.

For problem, i have same thing also, happen with some blueprint when i re-open with 4.6, but it won’t affect any thing anyway. So don’t care about that.