Outook 365 does not keep sort order of Inbox.

Occasional Contributor

We have a new corporate installation of Office 365. I'm now using Outlook 365 via a browser and outlook.office.com. I use Remote Desktop from home to get access to my work PC.


Outlook 365 does not seem to keep the sort settings. Sometimes outlook.office.com does a browser refresh and, regardless of my inbox sort settings, the messages are always sorted "Oldest messages last". I would like it to always use "Oldest messages first".


I have already set the sort order via Filter, Sort, Oldest On Top but outlook tends to revert back to Oldest Messages Last for some reason, like any time the Outlook site, or I, do a manual page reload.


My settings are already set to show Oldest Messages First, but the messages shown area actually Oldest Messages Last. Below are my settings.

My inbox sort settings.My inbox sort settings.


Any ideas how to fix this? Is this a known bug?


Thank you.

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