Texturepack-Textures wont load (Mac OSX)

as you can see in the screenshots, i put the texturepacks in the Texturepack-Folder. They are displayed in the Game menu but not loaded ingame.

the texture packs a specially made for the new Texture-System

please feel free to help me

Edit:
after several restarts some textures are loaded.
These Textures are from all entities (see screenshot)