I am using sw2010 2.1 and noticed that in an assembly that have few sub-assemblies included , only 1 sub-assembly is free to move with its mates ,althogh I made all needed sub's flexible .

for example : I have a door with 2 hinges and only 1 is working with its mates (and this is the same hinge multipled) , i am getting crazy from this .

any one have an idea?