" From the IRS Instructions, it appears you should only show activity on 1a and 8a IF ALL FORM 1099-B's did not have an adjustment. "
Wrong.
Enter the adjusted transactions (wash sales), then use line 2 on form 8949 to know how much to subtract from the category subtotals included on Schedule D line 1a and or 8a.
This should be exactly what TurboTax did for you.
Totals on line 1a and 1b should sum to the total on your broker's 1099-B statement for those category A transactions.
You don't have to mail anything and you don't have to attach any PDF files in lieu of mailing.
There is no issue and no reason to contact Support.
