POSITIONING ASSEMBLIES question

hello,

i have a question about Creo View positioning assembly:

this is the structure i have:

where test_5, test_4 and test_3 are positioning assemblies.

opening test_5.asm with Creo View it is like that:

then i modify test_1.prt and of course test_2.asm that become 1.2 both but when i open test_5.asm with Creo View it shows always this structure: where is my mistake?? thanks to all