[REQUEST] Need feedback on outdoor level

[SLAMnesia]

It looks pretty solid from the video, maybe more foliage would make it feel more wildernessy, like more bushes ect. I have made an outdoor part to my level and I get alot of flickering on my grass :\ I dont know what it is technically but it just fickers which ruins the feel. I couldn't see much but I didnt see any flickering with your grass. any help to fix my issue?