Since upgrading our test devices to iOS 9b5 random meeting organizers recieve several (3-9) meeting acceptance notices from the accounts on these devices daily. Both for meetings in the future and meetings that have already passed.
On the backend it is mailboxes on Office 365. Prior to, or if I revert the device to iOS 8.4.1 the problem does not happen.
If I go in to the account settings for O365 and turn off the calendar sync the issue goes away (as you would expect).
If I use another app to get calendar information that does not leverage the built-in iOS calendar account for O365 (Fantastical does this) like the MS Outlook app (which does not do this) the problem does not return.
Any ideas or is anyone else seeing this? I have enough experience with the iOS betas to know I cannot fix it or expect Apple to fix it except perhaps in the GM version.
Thank you,
Chris 😟