Meeting Organizer Changed After DST Updates

[1stClass]

After installing the OS (server and client) and Exchange updates and running
TZmove.exe, a couple of users have generated meeting requests (or request
updates as re-sends). Although the users generating the meeting requests
were not the original meeting organizer and should not have had permission to
change the original meeting request, the original meeting organizer has been
removed from the attendee list and the sender has now become the meeting
organizer. All of this occurs with no action on behalf of the user and only
after the TZmove.exe has been run and all calendar appointments updated to
correspond to the new DST changes. We are currently testing the impact of
the updates in our environment. Out of 15 - 20 systems, only 2 have
experienced this issue of resending and reorganizing meetings.

What could be causing this?

 

[Kenneth Sims]

I had the same issue after doing a test push to about 10 users and 2
individuals had the this exact problem. Another had appointments not
associated with him showing up on his calendar from another person and vice
versa for the other individual. I have not answers but you are not alone.
We have 400+ users and could potentially be looking at a 20% of the calendars
having issues. This is a nightmare waiting to happen.