How to add blueprint to the foliage paintbrush?

Ya, it’s a strange issue my project has then.

Yes, the filter, I moussed over it and it says “Filters where foliage instances can be placed”. Landscape is the only filter it works on. I think there is something broken with my project or I clicked something, I’m not sure.

I want to say thank you, to both of you for sticking around and helping me with my project, thank you! =)

Edit: When I choose a filter type other then landscape, the brush disappears like before. I guess that was the reason I had to make a landscape before it started to work. I wonder why it’s stuck to the landscape for me…