I do not seem to be able to delete one song

[Marinhoo]

Hi all,

I have a small but very annoying problem. I recently started using Spotify again, with a family premium account. I downloaded Spotify many years ago for the first time, and apparantly added some songs. However, one of those songs seems to be in every offline list, and I cannot delete is. When adding it to Your songs and deleting it again, it is still there. I now deleted the whole Songs section but this particular song remains where it was. Very annoying. This goes for both Windows desktop as for iPhone. Apparently in the webplayer, it is not there.

I hope someone has an answer so that I can start with a clean list.