Company Car Information Carrying over from 2 tax years ago Merged

Not sure how to describe this, I have been asked by support to suggest an idea.

We migrated from Earnie payroll to Staffology during tax year 24/25, and when the data was migrated, we weren't aware that company car details had been copied across, as they were dated tax year 23/24 and didn't carry forward to the year we were processing. Now we have completed the year end for 24/25, company car information for tax year 23/24 has moved across to the year 25/26. Surely that is wrong, but it looks like we have to start the year manually