So I been working on this map for about a month and a half and for a week the zombies don't come up to the barriers even when I replace the zombies and re pathnode my map just to see if it fix it and it didn't

Maybe the zombies arent connected to the right area, the zombies Could stand in the ground/ wall, (if you have multiple zones) maybe you didn't script the right thing for the zone entering

Hope ot helped