The textures on grass and folliage are moving. It's the best way to describe it without pictures. All the grass on the screen seem to be shareing lines from one large texture block that is only seen on foliage. There can be no wind but the texture block still moves from left to right like a repeating wave or something. Sometimes it looks like a grid only showing up on the grass.

Somewhat hard to describe but there's my problem. People on the Nexus website are having similar problems. I've tried .ini suggestion but it hasn't fixed the problem.

do the grass textures only move when you move your camera view or do they move even if your standing perfectly still?

If they only move when you are moving your view. this possably could be part of the issue people are having with shadows. ironicly the shadow issue where shadows do not show up unless your in the shadow then it projects from view and moves with the camera is called the shadow grass bug. its called that not because the grass shadows are the issue but because the shaders that are supposed to lock to the ground are unlocking and deciding to float. this bug may also be the reason your grass is unlocking from the ground. either way I feel for you because the shadows moving around make me nautious and your issue sounds like it would do the same. I hope the next update also fixes this for you and if its not what is causing this issue that someone who knows more about shaders and texture binding than me could figure this out for you.