Hey there,
your big “BeginOverlap” Node fires the branch as soon as you enter it. It isn’t “skipping” the X Key. Both of them are able to fire the branch node, because you plugged both into it.
What you really want to do is, only let the BeginOverlap fire the branch and cut off the “Set Light Color” node.
Now you copy the branch + “Spot Light Source” and “isVisible” and use the copied version for the X Key. So that you have the branch with the Visibility check 2 times, one time with the BeginOverlap and one time with the X Key.
The BeginOverlap will only use the “False” output of the Branch node and set the visibility of the Warning message and the X Key branch, will only use the “True” output of his own Branch and use it to change the light color.
The basic problem here is, that you are using the Key and the Overlap both for the same thing and both react like one, because the overlap will just change the lightcolor if the branch is true. So that’s why you split it up like i told you above. I assume you have the “Enble Input” thing somewhere else set, because you will still need to enable and disable input to make the X Key work at all. Also remember to Set the Visibility of the Message back to FALSE (no check mark) when you “EndOverlap”.
If you need more help, just tell me (: