First name appearing in internal citation

For a few of my references, either the first name or the first initial of one or more authors is appearing in the internal citaion.  For example, instead of (Smith, 2014), it appears as (J. Smith, 2014) or (John Smith, 2014).  I am using the CWYW plug in for Word and EndNoteWeb.  I have tried changing the orinigal reference and anything else I can think of and for the life of me can’t figure it out.  If anyone knows how to help me with this I would gladly appreciate it!

This can happen if there are any discrepancies in the way the author names have been entered. Please see this article for details: