Deductions & credits

A K-3 was issued along with the K-1 and has been filed by the businesses' accountant. According to the firm, our S-Corp was required to file K-3 even though all income was in the US.  That being said, some similar questions in the Discussions have been responded to by saying to simply un-click box 16 in Turbotax to move forward since there is no US in the drop down menu. If a K-3 has been issued how would this solve the Turbotax issue of not having US in the dropdown menu?