This is normal behavior. Not flickering, but lod system working showing/hiding grass. Now this is connected with mesh size on screen (grass is mesh too) and LOD system disabling smaller meshes and enables bigger - as we can see.
Nothing bad, but generally you need different approach to grass. First, you can set view distance in foliage system. This is just start of tweaking. More important is correct grass texture on landscape color. It should be same/similar color as grass mesh material, so when LOD system will work, it will be less visible. This is standard procedure.
I’m glad it helps, I use same solution and this is recommended anyway.
I just closed editor tonight, and I’m not sure from memory, but look for visualizers in unreal engine docs. I was wrong, this is not LOD system but culling for grass (disappear), so just in editor move camera forward and backward and you can test how cull works
thank you for making the texture very similar to the grass material helped a lot and I will continue tweaking also is there any way for me to turn off lod to test cull distance?
I just adjusted the brightness of the grass texture and now the lod is bearly visible also i posted another question about nav mesh not working on terrain could you see if you can help with that please? nav mesh not working question