Interaction LineTrace not work on Child Blueprint Actor

[manhtry8]

Hi guys, i was making an Interaction System using Linetrace, but for some reason, the LineTrace only recognize the Master Item Blueprint but not the Child Actor from it. Can you help me out? thanks.
Here are what i done with the logic
In the BP_FirstPersonCharacter

The InteractionTrace ActorComponent which i added in BP_FirstPersonCharacter

In the Master Item Blueprint

this is the collsion box

this is the Item

I made a video to show what i mean, the empty one is the master blueprint, the other was the child blueprint.

[L1z4rD89]

Hey @manhtry8

you can try CastToBP_BaseItem or use ClassIsChildOf:

You get the second CastTo node if you right-click the first one and select ConvertToPureCast

[manhtry8]

its working, thanks

[Kamalomai]

Enable collision and trace channel on child blueprint