When I finally got the belt last night I noticed that it wouldn't keep my Sweeping Wind up every second like it says, am I reading it wrong or is it bugged?
It's not bugged. It's just not very well designed. It only gains stacks when it's not hitting anything. Despite dealing increased damage.
if u hit someone with sweeping wind u get no stacks, so u only get stacks if u paly a range build or if u are out of combat