too many open and close connection when instance is restore

[xinkyo]

RESTORE_SESSIONS_ON_START_UP=true
when the server restart, the instance restore automatically ,or through link /instance/restore they are too many open and close connections flooding, it could not restore successfuly, I have to open new connection.
below is just few.

'ctwhatappreceiver start'
stdClass::__set_state(array(
'type' => 'connection',
'body' =>
stdClass::__set_state(array(
'connection' => 'open',
)),
'instanceKey' => '92dbcc4d-652e-4def-afb1-01bc7653aac7',
))
'ctwhatappreceiver'
'ctwhatappreceiver start'
stdClass::__set_state(array(
'type' => 'connection',
'body' =>
stdClass::__set_state(array(
'connection' => 'close',
)),
'instanceKey' => '92dbcc4d-652e-4def-afb1-01bc7653aac7',
))
'ctwhatappreceiver'
'ctwhatappreceiver start'
stdClass::__set_state(array(
'type' => 'connection',
'body' =>
stdClass::__set_state(array(
'connection' => 'open',
)),
'instanceKey' => '92dbcc4d-652e-4def-afb1-01bc7653aac7',
))
'ctwhatappreceiver'
'ctwhatappreceiver start'
stdClass::__set_state(array(
'type' => 'connection',
'body' =>
stdClass::__set_state(array(
'connection' => 'close',
)),

[ibkhall]

I have same issue