Hey, i have another problem(as always :x) and questions. Firstly i finally found solution for make trees move but there is another problem. I had some errors with Overlaping UV, so i generated UV in UE4 and ok, error dissapeared(yay hurray).
But on my model you can see some weird bugged shadows.
And here is my Question:
When i changed mobility to station, then problem dissapeared, so all foliage with any movement should be checked as Station or Movable? Or maybe there is other solution.