If you are seeing a Segment BETA populate a total of 0 guests after the segment was confirmed to be set up correctly, there may be a UI/syncing issue that can be resolved by hitting the Refresh icon in the segment. Once it is refreshed, you will see the correct amount populate.
You may also see this in the list of segments and will also have the option to refresh.
If further assistance is required, submit a ticket to Punchh Support. (For help submitting a ticket, click here)