Get grids intesections

Hi guys, I am having some trouble and can’t get to solve it, a couple of weeks ago this routine was working fine, but today I tried it and it gave me nothing… when I opened the .dyn file I saw that the List.RemoveIfNot node is not working as I expected… I am getting an empty list… any ideas? thank you!

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hi @SeanP
yes, that was my plan B, to filter with a bool mask, I would prefer to use the List.RemoveIfNot node, because that is the one that the office used on some other routines, but, in this one it appears not to be working… I will try it in the other routines, thank you