The mapping operation may fail with the following error message:
"Map operation aborted. Details: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding."
This is a product defect - TF00421206.
This Product Defect (TF00421206) has been fixed in the latest available cumulative patch, you can get more information about it here:
One Identity Quick Connect Sync Engine 5.4 Hotfix Roll Up 1 (147102)