CXTPRibbonTab custom position

Hi. How to set tab postion on Ribbon Bar?
I have crated Ribbon on dialog.
...
CXTPRibbonTab* pTab1 = m_RibbonBar->AddTab(L"Tab 1");
RepositionBars(AFX_IDW_CONTROLBAR_FIRST, AFX_IDW_CONTROLBAR_LAST, 0);
CRect tabRect(55,35,135,83);
pTabOverview->SetRect(tabRect);
...
It`s OK, but pTab1 behaves like it has old RECT. Visually tab`s rect is changed but reaction of tab on events like (MOUSEMOVE, LBUTTONDOWN) is mismatch new RECT.