It IS the custom theme! Switching to a default theme it works properly... How can I correct the custom theme?
To update the custom theme I did this:
- open the CSS of the theme version 1.10.4
- go to the URL specified in CSS
- download the theme again
Yet the problem persists...
EDIT: here you can see the problem
http://jsfiddle.net/ucF9M/1/The problem is the following: our custom theme sets a blue background color and a white font when hovering on a button/menu, but the hover font color is "applied" to the submenu too, even if it is not really hovered, so it gets a white font on a white background, which is our default for non-hovered items.
However, this did not happen with the previous version, so I would call it a "bug", or is it a misconfiguration of mine? If so, how can I fix it?
EDIT 2: ok, I found the problem: using jQuery UI v1.10.4, the .ui-state-focus class is applied to the specific <a/> tag I am hovering, while with v1.11.0 the class is applied to its parent <li/> element, and with it, to all of its submenus! This definitely seems a bug to me.