Why does my song "Lidia" rank is "n/a" if the battle is already over?

Lidia didn't get enough votes - you need atleast 20 to receive a ranking.

Which means, you can re-enter this song in a future battle, the existing votes will still stand.

Yep but the thing is that the drop down menu which allows u to reenter, has kind of diappeared from the songs which were entered.

I have like 4-5 songs which are locked in this manner.