Hi Andrey,
We have also logged a message with a SAP, will let you know if I hear anything back.
We have bypassed the MSS Home Page and just embedded the Detailed Team View as a standalone application in our MSS portal role.
Initially we thought that may have caused the problem, so in a way it's good to hear that you are having the same issue at your site.
There is also another problem that we just raised a message about where clicking on the "Hierarchy" icon in the Team Viewer for the first time refreshes the whole portal session, and the user has to navigate back to the Team Viewer page. After that it works fine until they next log on.
I wonder if you might have that problem too?
Regards,
John