broken form for device table (sm 9.3)

Can you explain me, what kind of miracles happen with a form for the table device and how can i fix it (without creating the entire form again) ?

There was a form configurationItem.g and it worked fine.

After i add new tab to form and add sime fields in this tab.

1) All tabs became visible (but they all have visibility conditions which  depend on selected category - and it work before)

2) All fields (not in tab) which have visibility conditions now do not displayed. (if remove condition then they displayed) Even if i add new one field and add conditions to it - then its not displayed.