The answer to the question of whether the reward has a lock period depends on the specific platform or system in question. Generally speaking, most rewards do not have a lock period, meaning that they can be redeemed immediately after they are earned. However, some rewards may have a vesting period of 24 hours, meaning that the reward must be held for 24 hours before it can be redeemed. Additionally, some rewards may have a 1 hour lock up period, meaning that the reward must be held for 1 hour before it can be redeemed. Ultimately, it is important to check the specific platform or system to determine the exact lock period for any rewards earned.