What could be causing the cursor to jump back to the username text field on the login page after loading?

The issue of the cursor jumping back to the username text field on the login page after loading could be caused by JavaScript code that focuses on the username field when the page is loaded. To solve this issue, you can remove or modify the JavaScript code that sets the focus on the username field.

<script>
    // Remove or modify the JavaScript code that sets focus on the username field
</script>