My app is crashing shortly after closing a MFMailComposeViewController. A UIWebDocumentView is releasing, which deallocates a ComposeBodyField object and it crashes on objc_msgSend. It only happens some of the time, and only on old devices. I'm assuming that something is being release/cleaned up before it's supposed to, so when the message is sent, the object doesn't exist.
The problem is that I can't get anymore information than that, and I have no idea how any of it ties together. If anyone can shine some light on this, it would be great.