Received corrected 1099-B which does not include previous 1099-B items

I received first 1099-B from my investment bank in beginning of February. I filled my taxes in first week of March. Then I received corrected 1099-B in late March. The new corrected 1099-B does not include transactions reported in the original 1099-B. The correct should be transaction included in both 1099-B and not in any single one. First 1099-B has transaction from Jan to Jul and second 1099-B, with Corrected check box, has transaction from Aug to Dec.

What should I do now?