Bug : "midi song select parameters is used in another song"

When I save a song that is already set with a midi song select value, the aeros don’t allow me to save it and it says “midi song select parameters is used in another song - Change it before saving”
But there is no other sond with this value of midi song select parameters ! The song is on conflict with himself !
So I have to change the value, save the song, and then edit again the midi song select parameter to put back the original value, and save the song a second time…
a bit annoying…