Hi, Tina M
The switch moving to Off doesn’t necessarily confirm that the change was saved, so I’d check whether it behaves differently outside your current browser session.
Here are some suggestions you can try:
Try a different browser, signing in to the same Microsoft account. After changing the setting, refresh the page before leaving it. I recommend this as a diagnostic check, not a confirmed fix for this particular toggle.
If it works in the other browser, temporarily disable any ad-blocking or privacy extensions in your usual browser and test again. Restore those extensions afterward. This is another troubleshooting test rather than a guaranteed solution.
If it reverts in both browsers, contact the privacy team using the “Contact our team” option on the privacy dashboard. That option is specifically available for privacy questions or concerns. Include your browser names and screenshots showing the setting before and after refreshing, with your email address hidden. Explain that your opt-out choice will not stay saved.