orca --replace should not kill script which is starting it

/usr/bin/eorca

#!/bin/bash
set -x
orca --replace & disown
true "INFO: waiting for 5 seconds to make sure orca has started."
sleep 5
dsudo easyorca-root

eorca

+ disown
+ orca --replace
+ true 'INFO: waiting for 5 seconds to make sure orca has started.'
+ sleep 5
Killed

Perhaps a "pgrep" is matching too much?