IP PIN is when the IRS has issued an identity protection additional layer of protection for your return based on a past issue. There is a separate place to enter that information in the "Other Tax Situations" section. The standard taxpayer PIN entered at the end of the return process is a self-selected identifier the taxpayer creates themselves.
Correct that IP PIN is six digits, the taxpayer PIN is five. They are two different things entered in different places of the software.
