Texture/Shadow Problems with Mod ingame help

I have Problems with my Mod and i dont no why. In the Ark Dev Kit all is working correctly but in the Game have Texture Problems. Must be fix this from the Ark developer or i have make a mistake by modding?

The same is in own Trees and bushes also!

Here is a Picture in the ADK:

Here is a Picture in Game:

how can a fix this?