Problem with Property Status

Good morning.
Your plugin was very useful to me.

But lately I’ve noticed a small problem with the statuses of a property (sale or rent).
If I add the new status from the main menu (Propreties-> Status), in backend, it is also added to the search in front-end, and this is perfect.
Instead, if I add a new state from the page of the single property (box on the right), in the front-end of the site the field in the advanced search is not updated.

What could be the problem?
I searched in the forum, but I didn’t find a post about it.

I use the 1.6.8 version of plugin.

Thank you,
Cristina