Unscoped, the report carries every station on the account — including the calls
belonging to another profile's logbook. Those match nothing here, and with 'add
the ones not found' ticked they would pour a second log into this one. The
station callsigns this logbook actually holds are now the filter: a portable
worked here is kept, an expedition call never used here is skipped and counted.
A near-empty report is also the failure that reads as success — 'matched 1 of 1'
where the account holds twelve thousand. Under 4 KB, what LoTW answered is shown
verbatim instead.