You never use JE for this; you would be violating Cash Vs Accrual reporting.
Even worse, they offset credit card to AP? You never use JE for AP or Credit card, and using it between them is even worse, as that affects the reporting.
Let's stop making JE and fix this.
That existing JE would never be between CC and AP. Those are both Liability accounts, so they accomplished Nothing from the perspective of the P&L.
Increase the credit card account balance = Banking menu > Enter Credit Card Charge.
Decrease the credit card account balance = Banking menu > Enter Credit Card Charge, but change that at the top, the radio button, to a Credit.
Here is the problem with mixing AP into this: the CC account considers itself "paid" by any AP entry. Even if you never make a payment in Pay bills, or only partially, the CC account balance was been affected by that AP entry, already.
So, let's keep going: AP is affected by using Enter Bill (increases AP) and Enter Bill > change it at the top to a vendor Credit.
Now, it is time for you to Unwind this mess. Because making entries between these two is simply running your data in circles and not Resolving anything.
"The "Applied to Credit Card Credit" throws me."
It's just a memo, so who cares? It isn't Functional. They never "applied" anything. They Hid It elsewhere.
You didn't mention which is the debit and which is the credit, nor the date. You need to Figure this out, then Delete the JE after doing it using the Credit Card tools and/or the Vendor Bill tools.
And by the way, your accountant just revealed they have no idea how to use QB properly, by making that entry. It is bad enough when they use Bill and Credit Card together; using JE for both of these accounts is even worse.
