Hi,
The first thing I want to check is if you updated the number of days again the second time you ran the query.
Note that the number of days setting just applys to the NEXT download query that is made, after that it resumes being "since the last download"
So if it wasnt set it is possible those sales just werent available yet from the eBay API, and now it is no longer going back far enough to check for them.
Please try to reset the days to go back far enough again, and re run the sold inquery.
If that doesnt work for you, please email me at
support@mycostpro.com with the missing sales record numbers, and I will investigate what is going on with them.