Found the problem, for some reason it doesn't work with Miningpoolhub but works with Ethermine
EDIT
Also whats good about this miner is that if one GPU crashes the rest still mine unlike ethminer which stops the entire program.
I noticed that too, but in my case I figured it because the "sick" GPU was running at 35C. The miner itself kept showing the card as if it was mining, probably a small bug.
Can someone give me a tutorial of how to set this up to mine with nanopool?
Read the OP, its all there!