ParkHouston malfunction?

I payed for my parking through the ParkHouston app and made sure the time and zone was right. the payment went through as well and i can see it on apple pay. yet i got a citation of $30 for "parking meter expired ". when i got back to my vehicle i still had like 12 minutes left. When i checked my history on the app, it is not there as well?? super disappointed in the Parkhouston app this is so frustrating.