The proseries and I revisited 2019 and it was definitely marked final. 

We also tried to look where to enter the carry forward outside of k-1, was not successful after 45 min.;

I understand it cannot be applied to 2020 at this year's tax return, but it should remain as carry forward to next year and not completely disappear if i delete the k-1 that should not be there. I feel like this is a glitch?