Hello, Bao,
Instead of destroying an actor, you can always just hide the actor (especially if you plan on using it more than once).
However, in this case, there is no “one correct way”. So, I want to see what the person is doing.
@Rev0verDrive asked if Saucy is attaching the MESH or the entire ACTOR. Basically the same question I’m asking, because you can see this by making the Capsule Component visible. This also addresses @Wildlight03 's concern about collision, because, again, seeing the Capsule Component will let us know exactly what is going on.
I think this person forgot to disable collision, but again, not exactly sure without seeing that capsule or their blueprint.