Caldav not downloading calendar events

I just tried creating a Caldav account. It finds the serves and lists the available calendars, but does not download any events. The server is Communigate and the log is below. It clearly sees the events, but is choosing not to download them. Any suggestions anyhow to get this working will be appreciated.

11:46:04 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/Alex
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/Brian
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/Carey
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/David
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/Dianne
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:18 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/Hans
11:46:19 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:19 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/Jean
11:46:19 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:19 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/Jeremy
11:46:20 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:20 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/John
11:46:20 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:20 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/Office
11:46:20 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:20 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/Paul
11:46:20 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:20 Saros Calendars [CalDAV] Synchronizing subfolders: For folder Saros Calendars/Robyn
11:46:20 Saros Calendars [CalDAV] Synchronizing subfolders: Done
11:46:27 Saros Calendars [CalDAV] Synchronizing items: For folder Saros Calendars/Jeremy
11:46:28 Saros Calendars [CalDAV] Synchronizing items: Sync of Saros Calendars finished: 0 uploaded, 0 deleted, 0 obsolete, 449 items, 0 downloaded
11:46:28 Saros Calendars [CalDAV] Synchronizing items: Done
11:46:28 Saros Calendars [CalDAV] Synchronizing items: For folder Saros Calendars/Jeremy
11:46:28 Saros Calendars [CalDAV] Synchronizing items: Sync of Saros Calendars finished: 0 uploaded, 0 deleted, 0 obsolete, 449 items, 0 downloaded
11:46:28 Saros Calendars [CalDAV] Synchronizing items: Done
11:46:31 Saros Calendars [CalDAV] Synchronizing items: For folder Saros Calendars/Jeremy
11:46:32 Saros Calendars [CalDAV] Synchronizing items: Sync of Saros Calendars finished: 0 uploaded, 0 deleted, 0 obsolete, 449 items, 0 downloaded
11:46:32 Saros Calendars [CalDAV] Synchronizing items: Done

I just upgraded the CommuniGate mail server from version 5.2.16 to 5.3.3 and Caldav calendars are now working well with eM Client.