Unity terrain isn't rendering

Hello! I'm having a problem. I've made some terrains with default unity 5 terrain toolkit and when I build my game for Android some of the terrains are rendered and some are not (not rendered terrains are always same). Terrain settings are identical with exception of TerrainData. I'm using Built in Legacy Specular shader (maybe it's not compatible with mobiles?). I'm working in Unity 5.0.1.f1.

I added console to the build and it shows error: "Terrain has no valid terrain data" wtf?

Well, full build log shows that UnityCloudBuild doesn't include Terrain.asset into build. I have 4 terrains and it includes only 2 of them. I guess they are considered as used while others ain't that lucky. How can I overcome this problem? I need to tell UnityCloudBuild, that those assets should be included.