Windows 2003/2008/2008r2
GroupWsie 2012.0.3hp1

Just updated from 8, yes I know. Im a little behind...

I right click a domain, select GroupWise Utilities" , then Synchronize. Check box Synchronize thr Post Office list on this object, and click ok. Works fine. Do the same to a post office except the check-box is now Synchronize the Membership list(s) on this object. On our largest post office, if I check the box to Synchronize Membership list(s), at around 83%, it gives me:
"Failed trying to commit the changes. (Error -613) An attribute value being added to an object might be
incorrect or the vaule is pointing to an object that does not exist in the tree."
I ran ndsrepair -U on the servers that house most of the members. One of the servers involved had to be rebooted in the middle of the day due to NDSD being pegged and un-responsive. I am not sure if this has anything to do with it.