Duplicate property while when using sorting by price

Hi
I have been experiencing a duplicate property if 3 different properties has the same price.

I dont know what happens. I deactivated all my plugins and the theme but the problem persists and only works if for example changed the price something like this:

Property 1: $2000
Property 2: $2001
Property 3: $2000

Some one know what could be happennig?

The wp-property version is the most upgrade

Thanks