SweepResult - Structure containing all the collision data of object entering the trigger area, precise positional data and so on (FHitResult | Unreal Engine Documentation)
In UE4 terminology “Other” in event arguments means “something” that triggered the event
Im a beginner so just one last thing i wanna ask. Could you explain UPrimitiveComponent. I know a little bit about it but i dont have the exact info that lets me use it whenever i want.