Some consumers who got health coverage or subsidies through HealthCare.gov might not have been eligible to receive them last year because of deficiencies in the federal exchange’s internal controls, according to a government report likely to further stoke Republican criticism.

Not all the internal controls were effective in determining if applicants were properly eligible for health insurance or subsidies, the Health and Human Services’ Office of Inspector General concluded in a report released Monday. It also found problems resolving inconsistencies between some applicants’ information and federal data.

The Centers for Medicare and Medicaid Services, which implements the health law, said the report examined the first open enrollment period in 2014. The agency said it was aware of the majority of the technology issues during those early days and corrected them prior to the inspector general’s report.