Menu always in active state after changing the icons

Hello,


I have only one menu and I started to play with the icons following the instruction.
Initially all was fine then the things went strange when most of the menu items were always in the 'active'/'hovered' state even if the mouse was not there.
I tried then the reset completely the menus_menu1.css: same issue!
The icons went back to the star icon but all the menu items except the first and the last one were permanently ''hovered''.
The only solution I found was to modify the menu items using the Appearance-> Menu and then re-save the menu.
Very weird...now is ok but...I just like to know if someone had the same issue here or if this is a known bug.
Regards,
Marco - StockTrader