I'm aware that the N900 can't handle responding to meeting requests right now, but has anyone observed it interfering with the proper functioning of meeting requests in Outlook?

Since getting my N900, I've noticed some meeting weirdness, particularly with meeting updates; sometimes I'll just end up with two copies of the meeting on my calendar. I haven't noticed any pattern to it though, and sometimes things do work correctly, so I haven't tried to dig into it yet.

Most recently however, I had a meeting that was updated that did not require a response. Despite receiving the update, which outlook believes has been moved to a new time, the request remains unchanged at the old time. This one is much more troubling, because while I can handle some quirks in the N900's calendar, it's unacceptable for my Outlook calendar to be flat out wrong.

Edit: I don't have most of the logging enabled right now, but I do see this in the log at the time the meeting update was received:
activesync[1386]: AS-LIB: Item 5:667 update failed with status 7 in folder 5 of class 1