zeekctl netstats gets stuck sometimes if zeek worker crashed

[6U-U9]

I was running a deamon bash script capture zeek stats, it runs zeekctl netstats every 5 seconds.
And there's another scripts that runs zeekctl deploy if it finds zeek crushed.
But I met a situation that if zeek crush at a specific time, that zeekctl netstats command will suspend and never ends, which cause zeekctl deploy waits for lock owned by zeekctl netstats and thus will not restart crushed zeek.

Envronment: Ubuntu 20.04 on virtual box ( 6cores i7-12700, 8G RAM)
Version: zeek 6.0.1
Except node.cfg, nothing is modified.

[logger-1]
type=logger
host=localhost

[manager]
type=manager
host=localhost

[proxy-1]
type=proxy
host=localhost

[worker-1]
type=worker
host=localhost
interface=enp0s3

I tried to reproduce this problem, and this is the script that works to trigger this problem.
By print more logs, I guess that zeekctl netstats gets stuck at /ZeekControl/events.py line 67 endpoint.peer(host, node.getPort(), 1)

#! /bin/bash
echo "bash pid: $$"
sleep_time=0.01

while true; do

    zeekctl deploy
    zeek_pid=$(zeekctl status | grep worker | awk '{print $5}')
    echo "zeek pid: $zeek_pid"

    test() {
        #sleep 10
        zeekctl netstats 
    }

    test &
    test_pid=$!
    #echo "sleep $sleep_time"
    sleep $sleep_time
    kill -9 $zeek_pid
    wait $test_pid

    echo $sleep_time
    sleep_time=$(bc <<< "$sleep_time+0.01")
done

Thanks for helping me solving this problem.