how to add dialogue after song ending

[sdnhdasodiasjijdjaskdnas]

so, normal dialogue is working, but when i making text file for dialogue after song (for example test-endDialogue.txt), game just ignores it
It doesn't matter whether I go through story mode or freeplay (with the freeplay cutscenes option), it doesn't work

[CamLikesKirby]

I didn't add that yet I think sorry for answering late