The following May 2nd post from Sonja Miller under the heading of Integration with EE and RE caught my eye:
Hi, yes I have reported all of the above. The synchronization also change relationship and relationship reciprocal for several students making them either a mother or father to their siblings. Also after synchronization it created duplicate nonconstituent records in RE. We sent Blackbaud our database to troubleshoot and I expect a call from them today.