Currently, on the tester profile, the bug approval rate is getting updated after submitting a bug report, even before the TL reviews the bug report. If a tester submits 10 bugs in a cycle, the bug approval rate will get reduced. If the tester level downgrade from diamond to the lower level,and if a new cycle launches at that time, then the bonus payout will not be calculated. I suggest to update the bug approval rate in tester profile only when the TL reviews it.