Error while meshing a composite structure

Actually, my model is a fiber reinforced matrix composite containing one matrix volume, 12 fibers and 2 volume (fiber matrix composite structure) and a crack at the center. During meshing with automatic sizing tool for all ids, only fibers are meshed and matrix and holding plates are not able to be meshed. Here is the .cub5 file I have provided. Please give me the solution for meshing the whole volume.
cubit01error2.cub5 (1.8 MB)