Dynamic animstion

I have created a large landscape scene using
both sky and direct light set to dynamic so no build time, have disabled texture streaming and animated a scene I’m quite happy with.

my issue is that a plant I am using from the kite open world demo really flickers in one of the shots. When I delete the Wind actor the fern plant still moves in the wind. Can’t seem to stop it or slow it down. Any ideas?!

For plants, the fake wind animation settings are created in the material setup. I believe you can also just change the plants to static, the opposite of what you did with the lights. Pretty sure it stops the animation, don’t remember though.