I have watched your video, not 100% sure I understand the actual issue from what was shown in the video. If I had to guess its a replication issue, in which everyone that has responded to you has mentioned this as well to perhaps give you the direction to self research and resolve your problem.
Please pull up the Video Tutorials about Replication / Networking & Blueprints and watch through them. I am certain you will find the answer you seek there. If it doesn’t solve your problem then you could probably elaborate on the issue further with your new found knowledge and rule out what it is not and then perhaps get a more direct answer as to what is left.
As it sits I am pretty certain its a replication issue.