The Ohio Casino Control Commission has fined the operators of the Cleveland and Cincinnati casinos over how they run their surveillance camera systems and other operational issues.
Casino tax revenue has not been as high as operators promised when voters approved their construction a few years ago.
Three of Ohio's four casinos saw an increase in revenue last month.
Ohio's four casinos saw gains in revenue last month after the facilities reported lackluster figures in January and December.
The Ohio Casino Control Commission says the opening of Ohio's third casino in Columbus sharply boosted wagering in October, despite a drop at the other two facilities.