Filing options with K-1

Hi!

I've used FreeTaxUSA for years to do my taxes. It's been an easy, cheap and reasonably painless way to handle my taxes.

I've had a K-1 (Form 1120-S) for years, but this time I have Code K in Box 17, which FTUSA doesn't support.

What's my best path forward here? Is there a way to do this partially using FTUSA? Or should I be switching to another software – which one?

Thanks in advance!