Hi guys,
I don't mean to high-jack this thread - simply add to it. It seems I have the identical problem and I understand that it will be sorted in next release so this is just extra info that may assist. The emails however are driving me mad, is any way to turn them off? I'm getting about 500 each day - because the system is being used very often. Also, I don't believe there are any custom queues that I'm aware of.

[SELECT COUNT(DISTINCT CASE WHEN B0.`address` = 'Oasis' AND A1.`ticket_id` = Z1.`ticket_id` THEN A1.`ticket_id` END) AS `q15`, COUNT(DISTINCT CASE WHEN A2.`state` = 'open' THEN A1.`ticket_id` END) AS `q1`, COUNT(DISTINCT CASE WHEN A2.`state` = 'open' AND A2.`state` = 'open' AND A1.`isanswered` = '0' THEN A1.`ticket_id` END) AS `q2`, COUNT(DISTINCT CASE WHEN A1.`staff_id` IN (16) AND A2.`state` = 'open' AND A1.`staff_id` IN (16) AND A2.`state` = 'open' AND A1.`staff_id` IN (16) THEN A1.`ticket_id` END) AS `q6`, COUNT(DISTINCT CASE WHEN A2.`state` = 'closed' AND A2.`state` = 'closed' AND A1.`closed` BETWEEN '2019-09-25 22:00:00' AND '2019-09-26 21:59:59' THEN A1.`ticket_id` END) AS `q9`, COUNT(DISTINCT CASE WHEN A2.`state` = 'open' AND A2.`state` = 'open' AND A1.`isanswered` = '1' THEN A1.`ticket_id` END) AS `q3`, COUNT(DISTINCT CASE WHEN A1.`staff_id` IN (16) AND A2.`state` = 'open' AND A1.`staff_id` IN (16) AND A2.`state` = 'open' AND NOT A1.`staff_id` IN (16) THEN A1.`ticket_id` END) AS `q7`, COUNT(DISTINCT CASE WHEN A2.`state` = 'closed' AND A2.`state` = 'closed' AND A1.`closed` BETWEEN '2019-09-24 22:00:00' AND '2019-09-25 21:59:59' THEN A1.`ticket_id` END) AS `q10`, COUNT(DISTINCT CASE WHEN A2.`state` = 'open' AND A2.`state` = 'open' AND A1.`isoverdue` = '1' THEN A1.`ticket_id` END) AS `q4`, COUNT(DISTINCT CASE WHEN A1.`staff_id` IN (16) AND A2.`state` = 'open' THEN A1.`ticket_id` END) AS `q5`, COUNT(DISTINCT CASE WHEN A2.`state` = 'closed' AND A2.`state` = 'closed' AND A1.`closed` BETWEEN '2019-09-22 22:00:00' AND '2019-09-29 21:59:59' THEN A1.`ticket_id` END) AS `q11`, COUNT(DISTINCT CASE WHEN A2.`state` = 'closed' THEN A1.`ticket_id` END) AS `q8`, COUNT(DISTINCT CASE WHEN A2.`state` = 'closed' AND A2.`state` = 'closed' AND A1.`closed` BETWEEN '2019-08-31 22:00:00' AND '2019-09-30 21:59:59' THEN A1.`ticket_id` END) AS `q12`, COUNT(DISTINCT CASE WHEN A2.`state` = 'closed' AND A2.`state` = 'closed' AND A1.`closed` BETWEEN '2019-06-30 22:00:00' AND '2019-09-30 21:59:59' THEN A1.`ticket_id` END) AS `q13`, COUNT(DISTINCT CASE WHEN A2.`state` = 'closed' AND A2.`state` = 'closed' AND A1.`closed` BETWEEN '2018-12-31 22:00:00' AND '2019-12-31 21:59:59' THEN A1.`ticket_id` END) AS `q14` FROM `ost_ticket` A1 JOIN `ost_ticket_status` A2 ON (A1.`status_id` = A2.`id`) LEFT JOIN `ost_thread` A3 ON (A3.`object_type` = 'T' AND A1.`ticket_id` = A3.`object_id`) LEFT JOIN `ost_thread_referral` A4 ON (A3.`id` = A4.`thread_id`) LEFT JOIN `ost_staff` A5 ON (A4.`object_type` = 'S' AND A4.`object_id` = A5.`staff_id`) LEFT JOIN `ost_department` A6 ON (A4.`object_type` = 'D' AND A4.`object_id` = A6.`id`) JOIN `ost_user` A7 ON (A1.`user_id` = A7.`id`) LEFT JOIN `ost_organization` A8 ON (A7.`org_id` = A8.`id`) LEFT JOIN `ost_organization__cdata` B0 ON (A8.`id` = B0.`org_id`) WHERE (A2.`state` = 'open' AND (A1.`staff_id` = 16 OR A5.`staff_id` = 16)) OR (A2.`state` IN ('open', 'closed') AND (A1.`dept_id` IN (1, 2, 3, 4, 5, 6) OR A6.`id` IN (1, 2, 3, 4, 5, 6)))]
Unknown column 'Z1.ticket_id' in 'field list'<br />
<br />
---- Backtrace ----<br />
#0 (root)/include/mysqli.php(199): osTicket->logDBError('DB Error #1054', '[SELECT COUNT(D...')<br />
#1 (root)/include/class.orm.php(3455): db_query('SELECT COUNT(DI...', true, true)<br />
#2 (root)/include/class.orm.php(3502): MySqlExecutor->execute()<br />
#3 (root)/include/class.orm.php(2085): MySqlExecutor->getArray()<br />
#4 (root)/include/class.orm.php(2035): HashArrayIterator->{closure}()<br />
#5 (root)/include/class.orm.php(2014): CallbackSimpleIterator->next()<br />
#6 (root)/include/class.orm.php(2023): CallbackSimpleIterator->rewind()<br />
#7 (root)/include/class.orm.php(1695): CallbackSimpleIterator->valid()<br />
#8 (root)/include/class.orm.php(1705): CachedResultSet->fillTo(9223372036854775807)<br />
#9 (root)/include/class.orm.php(1328): CachedResultSet->asArray()<br />
#10 (root)/include/class.orm.php(1351): QuerySet->all()<br />
#11 (root)/include/class.search.php(925): QuerySet->one()<br />
#12 (root)/include/class.search.php(865): SavedQueue::counts(Object(StaffSession), true)<br />
#13 (root)/include/staff/templates/queue-tickets.tmpl.php(100): SavedQueue->getCount(Object(StaffSession))<br />
#14 (root)/scp/tickets.php(526): require_once('/home/jackyind/...')<br />
#15 {main}