Why won’t turbo tax allow me to take a loss on my K-1 when I have basis, materially participate and meet all the criteria for taking the loss?

I have affecting this loss on my return for many years. Despite entering all the right information to be able to the deduct but TurboTax still shows $0 as opposed to a loss. I will have to find another way to prepare and file this return if TurboTax will not allow me to take this loss.