Section 1256 Contracts and Straddles in K-1 schedule, code 11 C, is considered as sold investments other than stocks or bonds

I made a huge mistake for buying a stock, which has a Schedule K-1 with code 11 C (Section 1256 Contracts and Straddles), only $86 there, but TurboTax considered this as sold investments other than stocks or bonds, TurboTax is wrong, because this is just a stock.