Quite a few users are reporting that Outlook is not saving options such as Mark as Read options in the reading pane, Send Immediately, and Save sent items. When the user closes Outlook and reopens it, the settings are changed.
A new Option in Outlook to sync settings with the cloud is responsible.
To stop Outlook from changing the settings, go to File > Options > General. In the Cloud Storage Options, remove the check from "Store my Outlook settings in the cloud"
This option stores your settings in the cloud, so when you open Outlook on another computer, your settings sync.
Thank you very much, Diane! This has been dodding me for several weeks.
You are an absolute genius - been looking for the solution to this one for a week!
Thank you soooooo much!
Maddening all of a sudden lots of settings always lost after restarting Outlook. I couldn't find the solution till now. THANK YOU!
Thank you so much. This has caused days of trouble. A fresh installation went bananas after a few days (with all the errors: No Sent Immediatly, Missing Mails in the Sent Folder, no Autocomplete). We even reinstalled the profile. It was a simple t-online imap account, so there was also the discussion about the usage of inbox,INBOX as a possible cause. But in the end it seems to be this bug. It´s a very nasty one.
I wonder in which scenarios exactly this happen, to which accounts or installations. And why. Are there any deeper explanations somewhere?
Microsoft is still investigating the cause and they haven't added anything to the known issues list ay Fixes or workarounds for recent issues in Outlook for PC - Outlook (microsoft.com).
Thanks a lot, I've searched of this problem in Internet in Poland and didn't find any solution. Or any similar bug report. It's very strange that sometimes outlook works. I used outlook 2019 long time and it appeared in April, maybe some last updates made this bugs. Thank you very much Diane
It is a new bug - the feature was enabled in an update sometime in April.
Thank You very much, it was very hard figuring out what was causing this. We have lost a number of emails that were sent when the setting SAVE COPY OF EMAIL was not checked because it was unchecking itself after every outlook restart.
Thanks for finding and posting this, has been an issue for me for several weeks
Thanks so much. This just happened to me to day and I have spent hours trying to correct it. I did actually spot the Save in the Cloud option (Without knowing but suspecting it may be the issue) just before I found this article. Microsoft really need to get a grip on things as their updates have caused no end of problems in the last couple of years.