Why isn't my xbox 360 minecraft working for two players?

I have the HDMI cable and it's still not working. Both accounts have gold. Please help! I tried to talk to people at gamestop but they didn't help. If anyone knows microsofts number of know why please comment!

Do you mean over xbox live or split screen? I think you mean split screen since you mentioned your hdmi cable so the way to do it is, connect the second controller, sign into your account and then press start while player 1 is in game and it should work

It not working!

I have hdmi and i've pressed start while they were playing and i was on my account