Oh man I completely forgot about the "message couldn't be delivered" error. I'll send a message to a coworker and it appears normally as if I sent it. Only 15 m

Oh man I completely forgot about the "message couldn't be delivered" error. I'll send a message to a coworker and it appears normally as if I sent it. Only 15 minutes later do I realize it never sent. I have never had that experience with another chat application.