This type of query is not supported for EXPLAIN

What is the query ?

SELECT id,
num,
code,
uid,
code_id,
create_time,
active_time,
update_time,
status,
type,
order_no
FROM tb_test
WHERE ( test_id = 10000 ) limit 0,10001

Hm. Should work. Can you please file the bug as described here assuming you tested it with latest version
https://www.percona.com/forums/questions-discussions/percona-monitoring-and-management/50690-if-you-encounter-a-bug-with-pmm