Cant paint foliage in 4.26

Hello there I’ve been using ue 4.20 for years with no problem with the foliage placement, but for some reason I can’t paint it in 4.26 it works if you have a assist pack that already has foliage painted I can add delete, even add my own and it works but if I use map that doesn’t have any painted on the landscape it will not work and if I make my own maps at any height or location it won’t paint is this a bug or something? Or is there something I need to enable in the new engine version? Thanks