Issues when using 'Get-PWDocumentsBySearchExtended' cmdlet

I've been trying to use the following code to find documents that have the status of CheckedOut in ProjectWise. Then I would like to find those documents that have been checked out for an extended period of time and (say over 7 days since checkout) and generate a report, but have experienced a few issues.

# Browse to a folder
    $folder = Show-PWFolderBrowserDialog

# Return Documents that are checked out
    Get-PWDocumentsBySearchExtended -FolderPath $folder.FullPath -Status CheckedOut

Issues:

1. Dates for DocumentCheckOutDate and StatusChangeDate are not populating correctly and are showing as "01/01/0001 00:00:00"
2. This issue with the dates seems to be present within the Get-PWDocumentsBySearch cmdlet also.
3. Having specified the Status parameter as CheckedOut, it returns documents where the status is either CheckedOut or Exported. (This issue is relatively easy to work around, but included here in case there is an easy solution to fix it within the module).