Capcom: “Hunters, we have some important changes to Challenge Quest rewards.
To provide all hunters a reasonable and fair opportunity to obtain the event rewards for the ongoing Challenge Quest Doshaguma of the Hollow, we are making the changes as described in the image below.
Going forward, future Challenge Quests and Free Challenge Quests will not include rewards that require specific leaderboard rankings. Rankings on the Expedition Record Board will continue to be viewable as usual. Stay tuned for updates on future event rewards to come!
We appreciate your patience and understanding and thank our hunters who participated with the goal of earning rewards, and those who shared their feedback. We hope you have fun setting your best times possible in these quests!”
Source: N4G PC Monster Hunter Wilds Developers Introduce Changes to Arena and Challenge Quests