The exact same thing is happening as in this video:
https://www.youtube.com/watch?v=Bb7q_CBBtkk
I cannot complete this I deleted my sparrows and attempted to buy a green one but the quest is still on her and I cannot complete the story.
Other people who are having this issue.
https://www.bungie.net/en/Forums/Post/230656488?sort=0&page=0
https://www.bungie.net/en/Forums/Post/230624996?sort=0&page=0
https://www.bungie.net/en/Forums/Post/230933242?sort=0&page=0
I cannot do nightfall or any exotic missions until this is done.
I have bought 2, I have bought 3, I dismantled all the sparrows in my inventory, but it does not resolve this issue.