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We recently upgraded from Windows 2012 to 2012 R2 after SP 2013 SP1 was released and started to see some strange behavior when trying to use the tool.
On one server, the tool doesn't even open, see attached Error1.
On the other server, the tool opens and after a while returns a strange error, see attached Error2.
Can you provide some logs or some idea to what could be the problem?