Hi Everyone,
This is Carlo of the Outlook.com Support Escalations Team. I am a Senior Support Analyst for Microsoft and I am part of the Team investigating this issue/behavior.
I would like to set everyone's expectations that this issue is still being investigated by our Microsoft Engineers. We have forwarded the screenshots and fiddler trace logs that have been provided by the earlier customers. Please be assured that all of
the information that you have submitted to us have been collated properly and such information will be used in order to determine the root cause of this issue.
I would advise everyone to check this thread from time to time for updates on this issue. In the meantime, I would like everyone to try this possible workaround
only if this is applicable to you and your account:
1.) Determine if the Office 365 subscription that you are using is the Preview version or not.
2.) Take note of the first time that this issue happened and if it coincides that you used the Office 365 preview.
3.) If you are using the preview version and if the time that this issue first happened coincides with each other, then kindly unsubscribe from the preview version.
4.) Try again and see if the issue persists.
In the meantime, we will be investigating this issue further on our end also so that we can compare the results of our investigation with our Microsoft Engineers.
I would also like to thank MJJennings for sharing this information with us. We greatly appreciate it.
We would like to thank everyone for your patience and understanding regarding this issue.
Thank you.
Regards,
Carlo