Duplicated documets in Tamino 4.1.4

Dear colleges

We are involved in a massive upload of records into a Tamino 4.1.4. We have got records duplicates up to 16 times. Jus a few, around 16 in an upload of 60.000. The upload has been made using inojload.

Actually, this is a minor problem because we detected such records, and deleted them. We cannot find any objective reason that could be producing such behaviour. Of course in the source field for upload, there is only one copy of each record.

Unfortunately, we did not check the timestamp of such records before delete them, what would gave us valious information.

Have you any similar experience, or does this sound to you as a known problem ? Any recommendation will be welcome.

Thanks in advance