Misconceptions with Flow Control?

I’m having some trouble getting down flow control (i think), right now I’m making a menu screen, and in it’s settings you’re able to choose what atmospheric fog you want in the background. I’ve already got it set up through setting the value of two variables then casting it’s widget to the level blueprint, and although it works when doing the switch, for some reason both of the branches before setting visibility starts off ‘False’, causing both fogs / backgrounds to just not show up until you make a switch.

I tried playing around with Sequencing and changing the root Event exec from Event Tick to Event BeginPlay, but doing that just causes both fogs to go missing, even after making the change, so I figured Event Tick would be better since it would consistently tell one atmosphere or the other to keep visible, and that it’s always alright to switch on user request, but I can’t seem to figure out why the branches end up being False on start even though the default is ‘Dark.’

More about the blueprints here, plus a video example: Menu2 (Widget), Menu Level Blueprint, video

Nevermind, I just forgot to set the default value…lol