I'm pretty sure this is not a note 9 issue it's an issue I've had with a few different phones where the stock messaging app doesn't like to work. It'll sit there circulating and circulating when I hit send a message if I go into the texture app it sends it almost immediately. I have the most updated stock messaging and I did clear the cache earlier today for that app. It doesn't happen all the time but enough to be annoying.
My last couple phones have been factory unlocked though I did have a similar issue with a Sprint specific phone recently.
My last couple phones have been factory unlocked though I did have a similar issue with a Sprint specific phone recently.