Videos links after upgrade to ES 2...

Hello,

I have upgrade to ES 2... and i am dealing with video menu and url...

On my main menu i have a video link and video categories as sub links
parent menu is "video type"
and i have tried to use video's categories as sub links

but it's not working

The parent menu link to /videos and all videos appear... ok
The first sub-category " Savoirs faire, techniques..." link to http://www.rando-trekking.com/videos/savoirs-faire-techniques
and "all videos" appear not the one from that cat...

and on the left sidebar videos menu for that category point to
http://www.rando-trekking.com/videos/videos/categories/1-savoirs-faire-techniques

what do i have done wrong ?

thanks in advance for your lights on that

Loïc