Android Messages App Notification in Tray will not go away

My Android Messages app updated last night. I have the icon in my notification tray. Normally if I get a text, there will be a number there such as 1 if I have 1 unopened message. Since the update, that number does not clear after I have read a new message.

from Android Forums at AndroidCentral.com - Ask a Question //forums.androidcentral.com/showthread.php?t=773625&goto=newpost
via IFTTT