The Ghost Message issue just occurred on my Motorola Droid Ultra. I read through many of the discussions and decided there must be an easier method of getting rid of the number that appeared on the widget. Today I installed an app on my Google Chrome Browser on my PC called "Motorola Connect". This app will allow you to read and write text message from your PC and keep everyting in sync with your phone. The app synced all of my text messages and then some. It also included the so called ghost message. There was an error message that stated the message failed to be delivered to my phone. The message source was bold on the Motorola app so I opened it. I then went to my phone and the ghost number disappeared! There was a simpler method and this was it for me. I hope it works for you.