Why are some menu items not assigned the active class in joomla 1.5?

Question

Joomla

Hello! A very unusual situation. There is a site, there is a menu, everything worked, all items, when necessary, were assigned the class active and id current. Now the admins have changed the menu a little, added new items, removed some and something strange happened. Most of the items are now not assigned this class and id, I write to the majority, because some are still assigned and I can’t understand what’s the matter at all. The theme files, judging by the date of the change, have not been touched by anyone, only work with styles. Maybe someone came across and can help. How do you need to change the menu so that it works so crookedly.
Help me please.

Answer 1

The first thought is that someone hacked these menu items. You need to look at the layout of the menu module (can be overridden in the template)