Turbotax 2016 does not offer correct description for 1099 Box 7 code

In 2018 I received a 1099R for an IRA recharacterization made in early 2017 for a 2016 contribution. Turbotax 2017 told me I need to amend my 2016 taxes (there was an increase in value of the funds between contribution and recharacterization).

I reinstalled TTax 2016 and am trying to enter the 1099R, but the Box 7 code R states that is for "Recharacterized IRA contribution made for 2015 and recharacterized in 2016." My contribution was made in 2016 and recharacterized in 2017, but TTax 2017 told me to amend 2016.

I seem stuck in a loop. What should I do next?