How can i check attached actors?

when i throw grande, multisphereTrace to find actors in radius

  1. if hitted actor have “heat actor” already , do nothing.
  2. if not, attach to actor “heat actor”

but, it dosen’t work.

attaching is ok, but it attach again next grande blast.

it looks can’t reference attached actor.

how can i do it? (i tried get components by class > child actor component > not working too)