Export - some sample contact records are not exported for unknown reasons

While testing sorting of export - I discovered that I could "select" 9 records and have only 6 of them appear in CSV output file.

Assuming current rev of generated data, you can recreate on demo:

• Find Contacts, enter 'Yadav'
• Select Yadav, Raymond (cid=85)
• Export Primary Fields

You will get an empty CSV file (no header row, no data row).

Perhaps there is some "intentional / feature reason" for this - but I don't know what it might be ??