Zend certified PHP/Magento developer

Toast Notifications showing mixed user profile pictures for Outlook emails

We recently upgraded to Windows 10 last week at our company. Since then a growing number of our users have reported showing the wrong persons profile picture for an email or Teams message on toast notifications. This seems to be temporarily corrected by clearing the ActionCenterCache folder, however we were hoping for a more long term solution/fix.

This issue does not seem to be limited to internal users as outside emails have gotten internal users profile pictures, none of the users I have checked so far even have a local contacts list as a possible cause.

Any solutions or direction would be appreciated.