Attach Component Problem with 2 Actors

Hello everyone, i am new at unreal enginge and try differnet things with BP.
(Sorry my english is bad)

My Project: Actor Yellow should transport to Actor Red with Actor Blue.
(Finale Idea is to take in VR the Yellow Actor and move it to the Collisions Box to activate the Blue Actor.)

In the Blueprint i do the moving with Timelines and Attach the Actor Yellow to Actor Blue, but the Node “Attach to Componet” does nothing. after the first Timeline.