Unidentified icon on Android

[AC Question]

Hi, on the right top corner there is a strange icon and i dont know its meaning. Since it appeared i do get notifications of incoming text messages but once i open the message app, it is empty.
Can someone help me out please?

 

[mhinc]

Hi, on the right top corner there is a strange icon and i dont know its meaning. Since it appeared i do get notifications of incoming text messages but once i open the message app, it is empty.
Can someone help me out please?

A screen shot or at least a description of the icon you are seeing would be required, otherwise no one would be able to help you with your question.