I have experienced that, bounty payments that are delayed and not even paid, for example, elysian coins, they don't pay bounty hunters after delaying it for several months.
Delaying the payment is kind of a common thing for most bounties nowadays. Not thay I say that every bounties were like thay, but even if they pay you on time, no one's saying that it will tradeable or have value. That's one of sad things being bounty hunter. We don't get paid, or get paid less than it should've been.