74hc595 oe pin not working

This is the first time anything has failed me from ebay, I've been doing stuff like this for a year and haven't had problems like this
the fact that one pin isn't cooperating baffles my little knowledge of electronics
If the other 15 pins follow the oe pin, and the oe pin controlls them all, why wouldn't one follow? And actually do the opposite?
I guess im gonna have to double up with another output but still, that's weird result