User entered credit card expenses from the Credit Cards screen, but cannot find them when batch invoicing the project.
When you enter expenses from the Credit Card screen, Core automatically creates expense entries from it in the Expense Entries screen. You should approve the expense entries before they show up for billing in the Create Batch Invoice screen. Check the Core Help for more details. The same is true for the service items you enter via the Credit Card screen. Core creates time entries from them and you should approve them before you can bill them.