Missing mesh and missing prefab problem in Unity for iPhone

Hi,

I have a very strange problem. I created my project with Unity. It includes an animated character and a some buildings. The character and the buildings are also saved as a prefab.

When I start this project on my mac with Unity for iPhone the character appears and works fine but something is wrong with the buildings. They are marked red in the hierarchy. That usually means that the prefab is deleted. But it is not! It is still there. Furthermore no mesh and no material is found.

Any ideas why I get theses problems with Unity for iPhone?

Thanks a lot in advance!

I have posted an item in the Asset store which has an editor script that can fix broken / missing prefabs

https://www.assetstore.unity3d.com/#/content/8196