In the Windchill Help there is:
NoteConditions are not currently reflected in the end-user user interface. Therefore, even if you set up conditions in the Type and Attribute Management utility, they have no effect on the end-user user interface. Enhancements are planned to close this gap in a future Windchill release.
There are 2 articles about it:
CS54319
CS130750
It is absurd: PTC implemented a functionality that sometimes works and sometimes doesn't work. They suggest to do not use it and if you open cases about it they reply that it is not supported.
My conditions are working fine in the user-interface but now in 10.2 I have an error in the Structure Tab.
I created the case 12519853 and ptc created the spr 2263263 but now they are banning me because it is not supported.
I think that ptc must close the gap immediately.