To avoid losing your rewards, our advice is to claim them before the event ends. This could prevent from losing the rewards in case they were not delivered to your clan inbox.

Another possibility is that there is a delay in the reward distribution. In some cases, rewards may appear only after restarting the game or after a short waiting period.

It can also happen if there was a temporary technical issue. In the past, some updates fixed problems that prevented players from claiming clan event rewards.