Web Capability Analysis Tool (WCAT) – No Output XML

I have WCAT 6.3 running fine up until the point where it is supposed to generate the log.xml file. In the cmd window, I just see the last Cooldown update, like so:

******************************************************************************
COOLDOWN 20/30 secs                             0 hours, 2 minutes, 20 seconds
******************************************************************************
         Connections =                        0 (                       0/sec)
         Disconnects =                        0 (                       0/sec)
        Socket Sends =                        0 (                       0/sec)
     Socket Receives =                        0 (                       0/sec)
     Full Handshakes =                        0 (                       0/sec)
Reconnect Handshakes =                        0 (                       0/sec)
          Bytes Sent =                        0 (                       0/sec)
      Bytes Received =                        0 (                       0/sec)
    Bytes Sent (SSL) =                        0 (                       0/sec)
Bytes Received (SSL) =                        0 (                       0/sec)
  Time To First Byte =                        0 (                     Minimum)
  Time To First Byte =                        0 (                     Maximum)
  Time To First Byte =                        0 (                     Average)
   Time To Last Byte =                        0 (                     Minimum)
   Time To Last Byte =                        0 (                     Maximum)
   Time To Last Byte =                        0 (                     Average)
        Transactions =                        0 (                       0/sec)
     Normal Requests =                        0 (                       0/sec)
     Secure Requests =                        0 (                       0/sec)
    Normal Responses =                        0 (                       0/sec)
    Secure Responses =                        0 (                       0/sec)
        Total Errors =                        0 (                       0/sec)
      Connect Errors =                        0 (                       0/sec)
         Send Errors =                        0 (                       0/sec)
      Receive Errors =                        0 (                       0/sec)
      Parsing Errors =                        0 (                       0/sec)
   Unexpected Status =                        0 (                       0/sec)

In my client.ubr file, I have the following:

scenario
{
    name    = "default_doc";

    warmup      = 30;
    duration    = 90;
    cooldown    = 30;

    default
    {
        setheader
        {
            name    = "Connection";
            value   = "keep-alive";
        }
        setheader
        {
            name    = "Accept";
            value   = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, */*";
        }
        setheader
        {
            name    = "Accept-Language";
            value   = "en-us";
        }
        setheader
        {
            name    = "User-Agent";
            value   = "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0";
        }
        setheader
        {
            name    = "Accept-Encoding";
            value   = "gzip, deflate";
        }
        setheader
        {
            name    = "Host";
            value   = server();
        }
        version     = HTTP11;
        statuscode  = 200;
        close       = ka;
    }

    transaction
    {
        id      = "default_doc";
        weight  = 100;

        request
        {
            url = "/home.aspx";
        }
    }
}

And in my settings.ubr file I have this:

settings
{
      server         = "test.company.com";
      clients        = 1;
      virtualclients = 2;

    counters
    {
        interval = 10;

        counter = "Processor(_Total)\\% Processor Time";
        counter = "Processor(_Total)\\% Privileged Time";
        counter = "Processor(_Total)\\% User Time";
        counter = "Processor(_Total)\\Interrupts/sec";

        counter = "Memory\\Available KBytes";

        counter = "Process(w3wp)\\Working Set";

        counter = "System\\Context Switches/sec";
        counter = "System\\System Calls/sec";

        counter = "Web Service(_Total)\\Bytes Received/sec" ; 
        counter = "Web Service(_Total)\\Bytes Sent/sec" ; 
        counter = "Web Service(_Total)\\Connection Attempts/sec" ; 
        counter = "Web Service(_Total)\\Get Requests/sec" ; 
    }

    registry
    {
        path = "System\\CurrentControlSet\\Control\\FileSystem";
        name = "NtfsDisableLastAccessUpdate";
        type = REG_DWORD;
    }

    registry
    {
        path = "System\\CurrentControlSet\\Services\\Tcpip\\Parameters";
        name = "SynAttackProtect";
        type = REG_DWORD;
    }
}

The test runs fine when I run the following command on the controller:
wcctl -f settings.ubr -t client.ubr
and the following on the client:
wcclient

Just not sure why it wouldn't spit out the log.xml file or give me any kind of message/error as to why it didn't. The CPU remains utilized at roughly 50% until I finally kill it (I've given it up to 30 minutes waiting on it to do something). Anything I'm missing here or suggestions you might have?

Edit
Yes, I have also tried the -o switch with no luck… same results either way.