cant link revit model to twin motion...

Have latest Revit and have downloaded TM off the autodesk account and installed it- theTM program is open and working.
Have my revit open and in 3D view- If i try open the link through revit it says “TM isnt installed”… If I open through TM instead through datasmith etc when I navigate to the files where my RVT files are it shows empty files… Please help!!!