My Level Instance is not working on a specific Blueprint (Help Pls)

So I’ve been working on a save level instance feature for my game. To save the level just the way it is.
Here’s the tutorial I followed if ya’ll are wondering:

But back on track. The level instance saving works on all of my blueprints… But there is one Blueprint that isn’t working…
I can’t figure out what’s going on, It’s got the same code as the other ones (THAT WORK). I don’t get why It’s not working. And yes I made sure they accounted the different blueprint, But its still not working… And I made sure the level’s game mode was the right one.

I have some images of the Blueprints in question:


Can anyone help?