ListMessagesByPage for IMAP

It appears that the ListMessagesByPage will not get info on appointments. We are connecting to Exchange with IMAP. I have attached a file that list the output of the folder enumeration. You can see there are a couple of calendar folders. When we use:

ipi = imapClient.ListMessagesByPage((int)pplCommonData.DataConstants.NumberOfMessagesToRead);

The data in ipi is:

-  ipi {Aspose.Email.Clients.Imap.ImapPageInfo} Aspose.Email.Clients.Imap.ImapPageInfo
  AbsoluteOffset 0x00000000 int
+  Items Count = 0x00000000 Aspose.Email.Clients.Imap.ImapMessageInfoCollection
  ItemsPerPage 0x000001f4 int
  LastPage true bool
  NextPage null Aspose.Email.Clients.PageInfo
  PageOffset 0x00000000 int
  TotalCount 0x00000021 int
  next null Aspose.Email.Clients.PageInfo

You can see the total count is still 33 but the items are 0. Also if I add a

MailMessage mm1 = imapClient.FetchMessage(1);

immediately after the ListMessagesByPage I get a message with an alternate view.

Any guidance on this would be appreciated.