The app is ridiculous. I saw red pins pop up again about 2 am, tried to claim one and it said no longer available and they all disappeared again.
I understand they have quotas but it is frustrating as a shopper to plan a route for a day when the available work just comes and goes.
They should at least set shopper limits or say you have unril 5 pm to claim yours. I have not been able to claim more than 2. I never even saw the c stores.