I'll need to do some tests later, but importing your own creation from a link (at least yours, maybe from someone else as well) adds the creation to the Players database without seemingly checking if it is in your own database, which is leading to weird behaviour (you have the same creation in your own and players database, and deleting in one shows the other as MISSING CLASS until you reload, at which point the creation is back in your own database again).
I'll need to do some tests later, but importing your own creation from a link (at least yours, maybe from someone else as well) adds the creation to the Players database without seemingly checking if it is in your own database, which is leading to weird behaviour (you have the same creation in your own and players database, and deleting in one shows the other as MISSING CLASS until you reload, at which point the creation is back in your own database again).