Multiple meshes with rigify: One does not transform at all I have been experimenting with the latest rigify version where there is a horse rig added. 
The hair meshes do what they should when I go to pose mode and behave somewhat okay. 
The horse main mesh however does not. I have seen in weight paint mode that there have not been applied ANY weights though I selected so. Any solution to let it be re-calculated?
Thanks for your help!
Found out that there was an issue with too many verticies in the object causing the automatic weight painting mode to not work at all. By doing retopology and/or simply decreasing the face count and repeating the steps it will work.