Answer: The delay of reward distribution could be due to a variety of factors. For example, the protocol may not have been designed to adequately account for the complexities of the reward system, or the underlying infrastructure may not be able to handle the load of the rewards distribution. Additionally, the protocol may not have been properly tested before deployment, resulting in unforeseen issues that could cause delays. It is also possible that the protocol may have been implemented incorrectly, or there may have been an issue with the reward system itself. All of these issues can lead to delays in reward distribution, and thus should be taken into consideration when evaluating the risk of the protocol.