If you are a "CRM Administrator" have you looked at your System Jobs recently? Now for all those working on various projects ... Have you checked out the System Jobs in your development environments?
Choose SYSTEM JOBS
Immediately you will see a list of various information regarding various "system jobs" that might have run or might be "waiting".
Make particular note of the items in the waiting state. Do you know what they are waiting for? Should they really be waiting? Do they need to be cancelled?
Next Question: Are you managing your system job log? Has it been purged lately?
Did you know that Duplicate Detection is a System Job?