Hi there, leew-images.
Let's explore the possible reasons why your previous invoices are not visible in your QuickBooks Sole Trader account.
When upgrading from QuickBooks Self-Employed (QBSE) to Sole Trader, data like invoices, tags, suppliers, and app integrations cannot be transferred. Download and save your reports beforehand, as your old account becomes inaccessible after the upgrade.
To ensure you can access your previous invoices, I suggest contacting our Live Support Team. They have the resources necessary to identify the root cause of the issue and can offer assistance through screen sharing to help you navigate QuickBooks more effectively.
For more information about the migration process, please check out this article: Switch from QuickBooks Self-Employed to QuickBooks Sole Trader.
Feel free to comment here again if you need further assistance with QuickBooks. We're here to help.