Yeah I was just doing that as kind of a failsafe test to see even if I did that if it would work, it didn’t lol. So I guess from what I can tell somewhere that reference is failing. Is it bad practice to create a reference to another blueprint in a different blueprint? For example in the SwitchBP I made an object reference to the SwitchDoor, and I also tried is valid and it said that the reference wasn’t valid. Now the part I am not sure about is how to make the reference to the SwitchDoor in the SwitchBP valid; sorry if all that was confusing also thank you for your help! 
Edit:
I just redid the object reference to the door that resides in the SwitchBP, and I breakpointed the interface message SwitchFlipped and it stops on that node but when I try to step into it doesn’t do anything? Just keeps repeating the send interface message SwitchFlipped and doesn’t go further than that.