Is screwing up a byline an "issue"?

I would definitely speak up in a professional manner about the errors and ask that a correction be printed the following week. I work for a really small weekly and am the editor (both managing and copy) and do the layout as well. The writers send documents in Word and they rarely remember to put their bylines in the document itself. I always type it in after I pour it into the Quark file. Same with the attributes to contributers. I would feel horrible if I made an error like that.