ICEM hexa 2d car example error
 

hellow dears, i have a problem when using hexa mesh 2d car example in ICEMCFD Tutorial.specialy,at body fitting the blocking.The internal block is not closed,at the rear of the car.i have try more and more,but the problem is the same.i don't know why? please,i will be grateful to recieve any idea, or tutorial or brochure concerning ICEM Hexa meshing of external flows.