Endnote - Wrong letter after the year (ambiguous citations)

I am using Endnote X7.3 for Mac with Word 2010, also for Mac.

I have a proble with ambiguous citations: Endnote puts a wrong letter after the year in both, citations and bibliography.

For example, I have two references from the same author, same year. It will appear in the bibliography like this: 

SenBJW - Senatsverwaltung für Bildung, Jugend und Wissenschaft Berlin (2013a): Handlungsrahmen Schulqualität in Berlin. Qualitätsbereiche und Qualitätsmerkmale. Berlin.

SenBJW - Senatsverwaltung für Bildung, Jugend und Wissenschaft Berlin (2013f): Inklusive Schule in Berlin. Empfehlungen des Beirats. Berlin.

So it is 2013 a and 2013 f , but there are only these two references, so it should be 2013 a and 2013b.

Thank you very much for your help in advance! 

Thanks a lot for the quick reply, I wil see what I will do, since I only got three weeks left for my thesis.

Hi Leanne,

I’m using Endnote X7.3 for Mac and I have this problem.  I looked on the other thread and it spojke of a Beta patch. Has this problem been resolved yet?  If not, can you please send me the patch for Harvard.  Thanks.

Thanks Leanne. Got the update and it’s all working perfectly 

Thank You
Good project! so much fun!
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