Several Universities have reported over the past few days that Duo no longer allows users to select the “Remember Me for 1 Day” option when using the Safari browser.
This issue has been reported to Duo and they are currently working on a fix for the problem. The root cause is most likely due to the most recent Safari update to version 10.14. Duo expects the fix to be implemented in the first week of December 2019. In the meantime, if you would like to have Duo remember your login for one day, you will need to use a different browser like Firefox or Google Chrome.
We’ll keep you notified on Twitter when this issue gets resolved!