i have same issue
I'm also encountering this problem.
See answer below. Schedule K is Page 5 of 1120. Check Yes on form, there is no interview question that fixes this problem.
Review the questions on your Schedule K and correct the answer to question #24 to "yes," if appropriate, which removes the need for the form 8990.
Where can i find that question Mondaz?
Form 1120, Page 5