Release 15.04, missing bookmarks on dolphin when restart

[WMID]

I use dolphin on UbuntuStudio from release 12.04 and now 15.04, dolphin
File Manager is one of my favours apps that I use more times.

In 15.04 when I make a bookmark drag and drop a
folder:

http://i.imgur.com/vTeYn7k.png

http://i.imgur.com/8nKHisV.png

This are missing on reboot, see:

http://i.imgur.com/KXYefoy.png

the reason is unknow for my, perhaps are a deb package that need to install
but I don't know wich


(To set a font large on dophin on 15.04 is necesary install qt4-qtconfig
and launch on a terminal: qtconfig-qt4)

Do You Can Help

-- 
Washington Indacochea Delgado
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