Clicking any one iOS mail app notification to view that mail removes all existing mail notifications
Clicking or clearing any one iOS mail app notification to view that mail removes all the existing mail notifications from the notification centre - including those mail notifications which are not clicked or opened.
It is observed for all types of mail accounts- IMAP, Gmail, Yahoo, Exchange, Outlook etc. Issue raised to Apple since early iOS 13.x versions, yet issue still unresolved on iOS 13.3. This happens at random and is not consistent- hence is definitely not by design.
This also happens when any one of the mail notifications showing up on the paired apple watch are clicked or cleared from the watch, which results in all the existing mail notifications getting removed from the iPhone notification centre as well as the watch.
What is expected:
Only that mail notification should get deleted from the notification centre, which had been clicked or cleared on the notification centre and not all the other remaining mail notifications.