I can find no evidence that #12 was ever published from Vol. 6:
https://www.mycomicshop.com/search?TID=43074089
https://www.comics.org/series/114003/
I can find no evidence that #12 was ever published from Vol. 6:
https://www.mycomicshop.com/search?TID=43074089
https://www.comics.org/series/114003/