Get your taxes done using TurboTax

You need to enter your nondeductible traditional IRA contributions under Deductions & Credits (see below).  This will create the missing 8606.  It wounds like you have the 1099-R Roth entry correct so post if this does not work or you need any other help.

Backdoor Roth IRAs are not a special type of account. They are Roth IRAs that hold assets originally contributed to a regular IRA and subsequently held, after an IRA transfer or conversion, in a Roth IRA.  A Backdoor Roth IRA is a legal way to get around the income limits that normally prevent high earners from owning Roths.