Update to iPadOS 13.6 results in emails marked as unread
Last night I updated my iPad to OS 13.6. Since then, when I open an email in the Mail app the email remains marked "unread", forcing me to mark the email as "read". I can open an email and just use the "next/previous message" buttons to move back and forth between all emails; regardless, all mail that was marked as unread remain marked as unread even using this method. I have not updated my iPhone or iMac just yet, but I cannot replicate the problem on the iPhone. Suggestions/recommendations? Many thanks!
iPad (6th gen) WiFi