This might not be the right place to put this but I'm confused with the blood alter. I've used it before in 1.7.2 but in the new beyond pack I've been trying to make a tier 2 blood alter and it keeps saying Im missing a block in an area. I thought all I needed was 8 runes around the alter
Blood alter setup
http://imgur.com/KeXEy08
Blood alter setup
http://imgur.com/KeXEy08