My draft message has been "flattened"?

A

AC Question

I installed a new mobile update n my Xperia Z3 and have noticed that a text message that I had in Drafts has changed from a draft message to an actual message (the writing of which I can't see anymore).

(Also, usually a draft message comes up in my message list as "(No recipient)" but is now "Unknown sender")

Can this be fixed?