Exporting Inbound Messages missing data

Latest versions
Wordpress v5.4,
Contact Form 7 v 5.1.7
Flamingo v2.1.1

Currently when in Admin under flamingo -> inbound messages “wp-admin/admin.php?page=flamingo_inbound”, when we click Export, the csv exported includes many (not all) blank rows with only the Date field populated. When I manually query the database (with query below), I see all the information that should be exported that is not.

SELECT
(SELECT
pm1.meta_value
FROM
wp_postmeta pm1
WHERE
pm1.meta_key = ‘_field_contact-first-name’
AND pm1.post_id = p.ID) AS firstname,
(SELECT
pm1.meta_value
FROM
wp_postmeta pm1
WHERE
pm1.meta_key = ‘_field_contact-last-name’
AND pm1.post_id = p.ID) AS lastname,
(SELECT
pm1.meta_value
FROM
wp_postmeta pm1
WHERE
pm1.meta_key = ‘_field_contact-telephone’
AND pm1.post_id = p.ID) AS phone,
(SELECT
pm1.meta_value
FROM
wp_postmeta pm1
WHERE
pm1.meta_key = ‘_field_contact-email’
AND pm1.post_id = p.ID) AS email,
(SELECT
pm1.meta_value
FROM
wp_postmeta pm1
WHERE
pm1.meta_key = ‘_field_contact-message’
AND pm1.post_id = p.ID) AS message,
post_date
FROM
ct_it3r_b4u9s.wp_posts p
WHERE
p.post_type = ‘flamingo_inbound’
and p.post_date between ‘2020-02-01’ and ‘2020-03-26’
order by p.post_date DESC

Can this be resolved?