Let's get your transactions corrected, userjohn-cutler.
How did you input the transaction? Additional details about this would be much appreciated. This would give us a clearer view of what we are dealing with.
Meanwhile, we cannot change the transaction type from income to expense. We'll have to delete the expense transaction manually.
After that, we'll have to recreate it as an income transaction. This depends on you whether you enter it as a sales receipt, invoice, or bank deposit.
Feel free to give us more details about it if the steps I've provided above don't work. We'll be right here to further assist you in recording your transactions.