@komatthew  Well, there's only three real situations that could be the case here.

Either the CD was accruing interest, or it was not.

If it was accruing interest, then the interest had to be showing up in the CD, or in another bank account.

If it was not accruing interest, then the wrong amount was moved.

If it was accruing interest and the interest was being deposited into another bank account, then the interest should have been recognized using the deposit function into said bank account as noted above, and the wrong amount was transferred over.

If it was accruing interest and the interest was staying in the CD, then the interest should have been recognized using the deposit function into the CD as noted above, and the correct amount was transferred over.

It's almost certainly option 3.

Ideally, you would be able to figure out how much interest was accruing each period, whether that be month or quarter, and use the deposit function to recognize the interest income in your books and increase the CD balance by the same amount. At the very least, you should create one deposit entry per year dated at year end for the year's worth of interest income.

At the end, if the entries were done correctly, your CD balance will zero out at the time of the transfer transaction.