When a segment attached with the Post check-in offer campaign is set to include all the guest based on the receipt time, there may be instances where guests are not being included in the segment and are not able to earn the reward.
For receipt image locations this scenario happens when the Validation operator approves the check-in but does not enter the receipt date and time.
Since no date and time is registered on our dashboard for this check-ins the guests get disqualified from the segment and are unable to earn the reward.