Something I have seen since upgrading to .246 - Mark Prior Opened not changing icon

Anyone else notice this since upgrading to .246

Since I have upgraded if i get 10 emails and go into my email icon and then click on the day and choose Mark Prior Opened - it now does not change the mail icon from still "unread" to the "read" icon. It USED TO with previous updates but does not seem to be making the icon change now.

NOW WHEN I EXIT THE EMAIL SCREEN it does show them read and when i get back to the home screen the unread icon is gone. Also when I go back into the email screen they are now all changed to the "read" icon.

In the past and before the upgrade when you hit the Mark Prior Opened option you would see the mail icons change right away, but not anymore.

Not a huge deal but something I have noticed. Anyone else.