PHP notices on the import page

WordPress Version: 5.0.3
PHP Version: 7.2.12
Jetpack Version 6.9

In the admin, when I go to Tools, Import, and click the link (WordPress) “Run Importer”
I see the following PHP notices:

<br />
<b>Notice</b>:  Undefined index: page in <b>/var/www/html/wp-content/plugins/jetpack/_inc/lib/admin-pages/class.jetpack-admin-page.php</b> on line <b>67</b><br />
<br />
<b>Notice</b>:  Undefined index: page in <b>/var/www/html/wp-content/plugins/jetpack/_inc/lib/admin-pages/class.jetpack-admin-page.php</b> on line <b>67</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/plugins/jetpack/_inc/lib/admin-pages/class.jetpack-admin-page.php:67) in <b>/var/www/html/wp-admin/includes/misc.php</b> on line <b>1144</b><br />

The actual import still works as expected.
So far, I have not seen the notices on any other pages.