We are using getUserIdentityTokenAsync method provided by Microsoft to fetch the identity token for our custom Outlook add-in.
Whenever we are updating the manifest file in Outlook to install the add-in, getUserIdentityTokenAsync keeps returning obsolete identity token with old aud value instead of updated one. getUserIdentityTokenAsync method returns the correct updated token only after 30 minutes of installing new manifest. This issue is only occurring where EdgeHTML is used as browser for add-in . For Outlook where Chromium is used as browser, it is working fine(https://docs.microsoft.com/en-us/office/dev/add-ins/concepts/browsers-used-by-office-web-add-ins). Can you please look into the issue & let us know if there is any recent change done by Microsoft in its behavior & what is the reason if done or is it an issue?