Get your taxes done using TurboTax

According to the TurboTax website for IRS forms availability - https://care-cdn.prodsupportsite.a.intuit.com/forms-availability/turbotax_fed_online_individual.html, Form 1116 Sch B, Foreign Tax Carryover Reconciliation Schedule will be available for Print: 03/31/2022, but unsupported for E-File. What does this mean?