Schedule K-1 is missing

I'm using TurboTax Business desktop version to file an LLC return. 

I have finished all the steps before the final step of e-filing. But I found the Schedule K-1 was missing in the final review forms. 

If I click view forms button, I can see the content of Schedule K-1.

But it's not in the final review forms, and it's an empty page if I choose Distribute K-1s manually.

 

Is it a bug of TurboTax Business? I never met this issue in previous years.