I run successfully a resting state ROI-ROI, ROI-voxel and voxel-voxel analysis calculating regression coefficients. I wanted explore graph theory results and got the following error just upon pressing the respective button. 

Undefined function or variable 'CONN_refs'.

Error in conn_displaynetwork (line 112)
elseif
isfield(CONN_refs,'canonical')&&isfield(CONN_refs.canonical,'filename')&&~isempty(CONN_refs.canonical.filename)
Error in conn (line 2434)
conn_displaynetwork('init',CONN_x.Results.xX.nsources);
Error in conn_menumanager (line 116)
feval(MM.MENU{n0}.callback{n1}{1},MM.MENU{n0}.callback{n1}{2:end});
Error while evaluating figure WindowButtonUpFcn

Inspection of the source code of function 'conn_displaynetwork' showed, that the variable 'CONN_refs' seems not to be defined in the code nor seems to be a subelement of the only defined variable 'CONN_x'.

Am I doing something wrong or is that possibly a bug ?