Okay, So now I have tried to uninstall the CU6 from the server.

After doing this step I get:

The version of the report server database is either in a format that is not valid, or it cannot be read. The found version is '163'. The expected version is '162'. (rsInvalidReportServerDatabase) Get Online Help

If I reinstall CU6 it works again. But if course the Drop Boxes do not work as desired.

Looking good MS.