The situation - we have a small group of Galaxy S4 users in our environment. Two of them are reporting that meetings that they are invited to periodically are removed from their calendar and are missing.
The issue appears to have started only when they purchased the Galaxy and added their Exchange account to it; it was not happening on their previous phone, a Galaxy Note.
We know that this sort of problem has been an ongoing one for iOS users and affects iOS versions prior to 6.1.3. Any word on if Android users are affected; we can confirm that in the user's delegation settings, they are set to receive meeting invitations and updates in addition to the delegate - this despite our IT team's warning to not do so as that can lead to known problems.
Looking for any experience with Android devices that have had similar issues and advice in general; Microsoft seems to imply that Android can experience such a problem but suggests we talk to the device maker to resolve.