There is a known issue with timed quests requiring dune unlocks disappearing before being able to collect rewards in the Day Realm, Night Realm, and City of Secrets. Unfortunately, the team does not have a timeline for when this issue may be fixed, and in the meantime Pocket Gems Support can credit back the 5 Power Tokens for this quest. To request this, please submit a support ticket with a brief description of the issue, the approximate date that the dune was completed, and preferably a screenshot of the dune that was unlocked.
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