I have a assembly A with different configurations ( x,y and z). I  replaced with the option " replace components" a subassembly 1 by a subassembly 2 in the assembly A configuration x and it works perfectly. Unfortunately, the subassembly 1 is replaced by subassembly 2 in the other configurations y and z, but I don't want that. I have already unchecked "all instances" and try all the options "match name" or " manually select" but the subassembly 1 is still replaced by subassembly 2 in all the configurations.

Any solutions?

Thanks