Hi there, @Anonymous.

Do you mind sharing what's added to the blank fields? When leaving those fields empty, they shouldn't have any information when being imported to QuickBooks Online. Before you do import, let's perform some basic troubleshooting steps to isolate the issue.

First, let's try accessing your account through an incognito window to rule out the possibility of a webpage issue. You can refer to these shortcut keys to open an incognito window in all supported browsers:

• Chrome: Ctrl+Shift+N
• Firefox: Ctrl+Shift+P
• Safari: Command+Shift+N

Log in to your QBO and import them again. If it works just fine, you may have accumulated too much historical data. I recommend clearing your browser's cache so you can access QuickBooks with a clean slate. You may also use a different supported browser.

Please let me know how these steps turn out. Keep safe and have a wonderful day!