When writing a message, the ability to use the top panel above the message periodically disappears; that is, it simply becomes inactive, and you cannot click on anything, as if the buttons are not there. I've attached a picture.
When writing a message, the ability to use the top panel above the message periodically disappears; that is, it simply becomes inactive, and you cannot click on anything, as if the buttons are not there. I've attached a picture.