I guess all I really wanted was for the journal entry to work the same way as payments in that I can select "miscellaneous" instead of being forced to select a vendor. I don't usually use the journal entry, but I was doing something different and I encountered this. I ended up putting in multiple payments, rather than entering a single journal entry.

I am still guessing you neglected to create a "bank account" for your "credit card" (https://frontaccounting.com/fawiki/index.php?n=Help.BankAccounts).

I am then guessing you are trying to directly use the General Journal to directly enter CC expenses using the CC G/L account rather than using Supplier payment or Bank Payment.

That can work, except if you create any suppliers with that CC card as the accounts payable account, which apparently you have done.   I don't think putting the CC G/L account into the supplier is helping you any, and is causing the GJ counterparty problem using this mode of operation.    If you just want to mark the supplier as being paid by CC for informational purposes, you can do that in the supplier bank account field.

Sorry I haven't been able to help.

Using the payables account in the manner you have described is unusual because normally a cc card would be used to pay for a variety of G/L accounts, for example, utilities, insurance, consumables, auto & travel, etc.   When a payment is made, the payables account would be one of these G/L accounts and the bank account would be the cc card.

I don't need a payables account for every type of expense, because I simply enter the amount against the correct expense account and add it to credit card payable. If I had a special payable account, I'd just have to immediately mark it paid using the credit card.

I have a CPA audit my books and I've never had a complaint about putting expenses on a credit-card payable account in 25 years.

Using the payables account in the manner you have described is unusual because normally a cc card would be used to pay for a variety of G/L accounts, for example, utilities, insurance, consumables, auto & travel, etc.   When a payment is made, the payables account would be one of these G/L accounts and the bank account would be the cc card.

So there is nothing wrong with putting the vendor purchase on a CC card, if it was set up as a bank account.  But it appears to me that you are trying to use the CC card G/L account directly, and you put that G/L account on the supplier default Payable account.

I am currently on version Version 2.4.3 Build 09.12.2017, does the latest 2.4 build fix this?

While I am sure there are good reasons for this feature, it strikes me as a little troublesome that there does not seem any way to either disable it nor prevent the automatic opt-in that seems to have resulted from the upgrade.
If this requires a tweak to a config file I am comfortable to do this... that said the documentation of this feature in the Wiki is virtually non existent which doesn't help either. I would be grateful for pointers on how to fix this.
Thank you.

I have noted it only shows up in the default bank account, no other bank account has it showing up when I select it.