| From the looks of it, it discarded the WU. This could possibly be because by using the -advmethods flag you are requesting beta-units (well, at least sort of beta) and you will sometimes encounter units of this sort that have errors.
I can see from your log file that it is using SSE again, so I don't think there is anything you need to worry about. You can remove the -advmethods flag if you do not wish to recieve any more of these WUs.
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