Not open external and undocked rdp sessions

Hello, i have latest Remote desktop manager installed in windows 10 and when it updated to latest build (160715), RDM not open sessions if mode is external or undocked, only embedded sessions worked :( When i try open external sessions it try open it, button open session changed to Close sessions but nothing opened and after some seconds button changed back to open session. Options open console and Restricted admin mode enabled, i also see RDM log and found no errors, in windows logs also no errors. Could you please check it or may be i can send extended logs if it's possible.