I Can't make a corner fillet in Icem Shape Design module of Catia, I want to do it with patch from curves tool but I can't apply two edge G2 continuity of four edge, I used match tool and manual editing of CV but I can't be successful.

two edges has G2, but when I want to make the two other G2, previous edge lost their G2, I try to make this problem with manual editing with control point, I can't to be successful.

I should say that I want only make it in Catia ISD and no other software.

Could anyone help me?