We have had a couple users of our application report a crash when the application accesses their calendar. Both users have around 18,000 appointments. We have narrowed it down to either the get_Messages call on the calendar folder object, or the Find call on the resulting messages when searching for (APPOINTMENT OR NOTE).

One other strange thing we see for these users when viewing the properties of the Calendar in the GW client (they are using version 7.0.1), it first displays the number of items as a really low number (around 40), then when closing out of the properties and trying again, it displays an accurate count.

I was wondering, are there any known issues when accessing a large number of appointments through the Object API?