wrong url after form save

[lke]

Hi,

i have a little problem. i think after the last updates to joomla 3.4 and fabrik 3.3.1.

Problem:
I have i menu menu1 with some items i.e. item1, so the url of the fabrik list are http://domain/menu/item1
Now I use the edit button on List and the form to edit data will be opened. After changes and use the save button the return URL is wrong. the URL looks like http://domain/menu/item1/menu/item1.

Menu and item are duplicated at URL.
Anyone has an idea what are wrong?

Lars