Commented Unassigned: Invoke-Expression : Exception calling "Add" with "2" argument(s): "Item has already been added. Key in dictionary: 'C:' Key being added: 'C:'" [25544]

I'm running PAL v2.4 against perfmon .blg from a test server and am getting the following error...

[Started] Memory Physical Memory Overwhelmed
Counter data for ""...Done
Counter data for ""...Done
Counter data for "\??\C:\pagefile.sys"...Done
Counter data for "\??\C:\pagefile.sys"...Done
Counter data for "C:"...Done
Counter data for "D:"...Done
Counter data for "E:"...Done
Counter data for "G:"...Done
Counter data for "H:"...Done
Counter data for "I:"...Done
Counter data for "J:"...Done
Counter data for "K:"...Done
Counter data for "L:"...Done
Counter data for "M:"...Done
Counter data for "N:"...Done
Counter data for "R:"...Done
Counter data for "S:"...Done
Counter data for "C:"...Done
Counter data for "D:"...Done
Counter data for "E:"...Done
Counter data for "G:"...Done
Counter data for "H:"...Done
Counter data for "I:"...Done
Counter data for "J:"...Done
Counter data for "K:"...Done
Counter data for "L:"...Done
Counter data for "M:"...Done
Counter data for "N:"...Done
Counter data for "R:"...Done
Counter data for "S:"...Done
Counter data for "C:"...Done
Counter data for "D:"...Done
Counter data for "E:"...Done
Counter data for "G:"...Done
Counter data for "H:"...Done
Counter data for "I:"...Done
Counter data for "J:"...Done
Counter data for "K:"...Done
Counter data for "L:"...Done
Counter data for "M:"...Done
Counter data for "N:"...Done
Counter data for "R:"...Done
Counter data for "S:"...Done
Counter data for "C:"...Done
Counter data for "D:"...Done
Counter data for "E:"...Done
Counter data for "G:"...Done
Counter data for "H:"...Done
Counter data for "I:"...Done
Counter data for "J:"...Done
Counter data for "K:"...Done
Counter data for "L:"...Done
Counter data for "M:"...Done
Counter data for "N:"...Done
Counter data for "R:"...Done
Counter data for "S:"...Done
Counter data for "C:"...Done
Counter data for "D:"...Done
Counter data for "E:"...Done
Counter data for "G:"...Done
Counter data for "H:"...Done
Counter data for "I:"...Done
Counter data for "J:"...Done
Counter data for "K:"...Done
Counter data for "L:"...Done
Counter data for "M:"...Done
Counter data for "N:"...Done
Counter data for "R:"...Done
Counter data for "S:"...Done
Counter data for "C:"...Done
Counter data for "D:"...Done
Counter data for "E:"...Done
Counter data for "G:"...Done
Counter data for "H:"...Done
Counter data for "I:"...Done
Counter data for "J:"...Done
Counter data for "K:"...Done
Counter data for "L:"...Done
Counter data for "M:"...Done
Counter data for "N:"...Done
Counter data for "R:"...Done
Counter data for "S:"...Done
WARNING: Please post errors or problems with this tool to the PAL web site
located at http://www.codeplex.com/PAL with the following error message and a
brief description of what you were trying to do. Thank you.
Invoke-Expression : Exception calling "Add" with "2" argument(s): "Item has alr
eady been added. Key in dictionary: 'C:' Key being added: 'C:'"
At C:\Program Files\PAL\PAL\PAL.ps1:3401 char:22
+ Invoke-Expression <<<< -Command $sCode
+ CategoryInfo : NotSpecified: (:) [Invoke-Expression], MethodInv
ocationException
+ FullyQualifiedErrorId : DotNetMethodException,Microsoft.PowerShell.Comma
nds.InvokeExpressionCommand


C:\Program Files\PAL\PAL>
Comments: ** Comment from web user: ClintH **

I'm not sure why it is failing. I am in the middle of rewriting portions of PAL such as this part. Can you send me the counter log? Upload to my personal OneDrive (encrypted upload) at http://bit.ly/PalUpload. Thank you.