UE5.3 Speed Tree Nanite Issue

I am currently working on importing my speed tree Trees into Unreal Engine 5.3. Since im planning on distributing a large number of trees on my landscape with PCG, i wanted to enable Nanite which caused the following Problem:

My Texture is completely distorted and seems to bend inwards? Has anyone else run into this problem and knows how to fix it? Any help would be greatly appreciated!