There are things we need to check, user74023.

Aside from making sure that the date when customizing the invoice is selected, let's also turn it on the company settings. Go to the Gear icon and select Account and Settings. From the Sales tab, turn on the Service date, then click Save and Done.

Also, let's verify if you selected the correct invoice template when recording the transaction. Let's create a new invoice or open an existing one. Click on Customize button at the bottom and make sure to select your customized template.

If the same thing happens, please contact our Customer Support Team for investigation. You can follow the steps shared by JasroV in reaching out to them.

Keep on posting if you need more assistance. I'll always be here to help you.