“With the help of Microsoft Support I have resolved this problem.
This issue was caused by incomplete entries in configuration item tables on the child site.
The fix was a three step process:
- Remove all bad .CID files from <\SMS\inboxes\objmgr.box\Incoming\Retry>
- Run a query on the child databases to remove CI data
- Force software updates object replication by placing a <sitecode>.SHA file in the central site <\SMS\inboxes\objmgr.box> folder”
It worked for me.