In my opinion, there are many things that make the hunters got the late delivery of their rewards.
1. The BM (bounty managers) is not completed the tokens stakes/calculation
2. The dev. team preparing to list their tokens to the "cheap" market (it has to be done in order to maintain the balance of their ICO price)
3. In some cases, there are projects that already release their tokens to the market, but not with the hunters (their excuse is to prevent the price being dumped and can't rise anymore, so the investors can enjoy their money)