When I make an update to a meeting and press Send Update, I receive the
message, "Changes to the meeting cannot be saved. The meeting has been
updated by another person. Close and reopen the meeting and then make your
update."

-When I close (without saving) and reopen I still get the message.
-The only way to bypass this message is to close Outlook and reopen.
-I am inviting a test user and a couple resources (2 meeting rooms, 1 laptop
(equipment))

The meeting hasn't been updated by another person because I try to update it
as soon as I send it.

Anyone know what is causing this?