There's no grass rendered or showing on Diamond City, using Diamond City Expansion mod

[YukiaArk]

Anybody can help me solve this problem?, installed Diamond City Expansion mod and run flawlessly without crash but there's one problem, majority of grass in Diamond City is not rendered, only a little bit at the market area. Still don't know if the problem tied with that mod, but i already tried reinstalling and putting to the lowest order as possible, still the grass not showing up, besides the Diamond City, grass is rendered perfectly.