Problem with random room spawning!Please help.

Hey Guys I was following this tutorial DGAW Wednesday. Random Rooms using Streaming Levels in Unreal Engine 4 - YouTube and I was able to get it working to a degree…I made sure my layout is exactly like his but my rooms spawn in a wrong manner.

http://imgur.com/DQfOunj here is the link .
Any help would be much appreciated.Thanks again!