Error by using REST with Matlab 2014b

Hi,
I would like to understand if REST toolbox is compatible with last Matlab version R2104b.
I used REST without problems on my Matlab version 7.5, but on a new computer Matlab R2014b was intalled and when I try to open Functional Connectivity section an error occurs. It looks like a wrong setting in an initial value, but other errors are generated if you try to perform other actions. All of them refers to ui control. Do anyone have the same problem? Is it possible to fix it?

You can see the error below, Thank you
Elisa

Error using matlab.ui.control.UIControl/set
While setting the 'CData' property of UIControl:
Value must be a three-dimensional matrix of RGB values that defines a truecolor image. Each value must
be between 0.0 and 1.0 or NaN.

Error in fc_gui>InitControlProperties (line 743)
    set(handles.btnSelectDataDir,    ...

Error in fc_gui>fc_gui_OpeningFcn (line 48)
    InitControlProperties(hObject, handles);

Error in gui_mainfcn (line 220)
    feval(gui_State.gui_OpeningFcn, gui_hFigure, [], guidata(gui_hFigure), varargin{:});

Error in fc_gui (line 39)
    gui_mainfcn(gui_State, varargin{:});

Error in rest>StartFunctionalConnectivity (line 517)
        fc_gui;

Error in rest (line 147)
    StartFunctionalConnectivity;

 
Error while evaluating UIControl Callback