Player Character not Controllable when Child BP is in the scene

Hey everyone. I am pretty new to blueprints in unreal and am having an odd issue when I bring in a child blueprint into my scene.

I am trying to make a game where you can fly around in different ships, so I have made a main Parent blueprint with the ship functionality, which works great. My idea is that I will make a child blueprint of this for each of the other ships I want, and switch out the static mesh and tweak the variables. However when I made a child blueprint and add it into the scene, my third person character stops working when I go to run the game.

In the video below, you will see what I mean. I have the Parent blueprint in the scene, run the game, and everything is fine. Then I add the Child blueprint (with the xWing model) and when I hit run my camera gets stuck in the ground and I am not controlling the third person character.

I’m hoping this is a simple fix, but any suggestions would be much appreciated. Thank you!