RED EXCLAMATION MARK
I am slowly being driven crazy by the red exclamation mark next to the text message (iMessage) icon on my iPad. An exclamation mark is not, however, showing on my iPhone! I found one message that had not been delivered and I deleted it. I have checked my other messages and can find nothing else. I am correctly signed on to receive messages. I have tried turning my iPad off and on again. Is there anyway to get rid of this exclamation mark without having to find the offending message? Please help me as I can find nothing else that could be causing this!
iPad Air, iOS 12