Hi,
something totally strange happens in an exchange organisation. We copied all virtual servers to a test-lab to analyze that behaviour:
It is a problem related to appointments and exchange and outlook 2016.
When a user creates an appointment it all works fine
When a user creates an appointment via email by clicking on that symbol "answer with appointment-request", it opens up a new appointment with the body of the email. The user chooses a date and time and sends that appointment-request to email-addresses
inside or outside exchange-organisation. After doing so, the appointment disappears from calender.
With the list-view of calender, we found that appointment without having start-date, end-date and no start-time, no end-time.
Therefore it only shows up in list-view because the appointment has no dates. Though, in sent-items you can see the appointment has correct date/time and all receivers get correct date/time. Even acceptance are displayed correctly in the appointment.
We solved the problem by opening up the appointment again that has no start/end-times, then have to correct the dates/times and send updates. Then it will be displayed correctly.
This behaviour happens only in terminalserver 2012r2 and terminalserver 2016. All other client-computers do not have that problem. Unfortunately more than 50% of employees work within terminalserver.
How can I determine this special problem?
If needed, I can take pictures to all my interpretations.
best,
Roman