CFExchangeTask Modify Error

Getting a strange error when 'modifying' an exchange task.

I create tasks with the same code, except I have action as "create" and UID as "result" and it works fine.  The error I'm getting when modifying a task happens before the page loads.  The double comma's in the error message make me think this is a bug with <cfexchangetask>. 

Here is the code:

<cfexchangetask

  action="modify"

  task="#sTask#"

  username ="username"

  password="password"

  server="server.full.url"

  protocol="https"

  port="443"

  serverVersion="2010"

  UID="#exchangeGuid#">

Here is the error:

Required attributes: 'action,server,,task,uid,username'. Optional attributes: 'exchangeapplicationname,exchangeserverlanguage,formbasedauthentication,formbasedauthenti cationurl,mailboxname,password,port,protocol,proxyhost,proxyport,serverversion'.

Required attributes: 'action,connection,task,uid'. Optional attributes: None.

Please help!