No need in access to your site copy. I just re-tested WC v. 3.4.6 and reproduced the issue.
Good news: All roles are in place and just not shown while WooCommerce is active. I investigated the issue and found a serious bug in WooCommerce code:
Look at the line #339. current_user_can() always returns true for WP multisite superadmin user. Thus this code hides all roles except ‘customer’. This function is located inside ‘includes/wc-user-functions.php’ file.
It’s a new behaviour. This code was added from version 3.4.6
You have 2 variants until they fix this:
1) rollback to prev. version of WC 3.4.5
or
2) comment lines 339-342 in the updated function. It looked this way at version 3.4.5:
function wc_modify_editable_roles( $roles ) {
if ( ! current_user_can( 'administrator' ) ) {
unset( $roles['administrator'] );
}
return $roles;
}
