How one gets the code to fix it themselves I also have no idea.
The source code is on the github which can be loaded into QT Creator.
I've tried doing it myself but I'm getting a compile error on build. Something about OpenSSL being missing.
I know you are trying to help. Github lists Latest commit a51dc1c on Jul 4 for testing and july 5th for master. That was the day the version I am using came out(7-5-2015 or 5-7-2015 depending on local July 5th at any rate). It is the version I built on the Linux box that has the same problem. I'm not sure where the data for the "Private Beta" is. With the updated code base at least 1 instance would be less problematic to shut off. Of course I haven't ever had QT Creator work for me. I wish I had better information but 1.07.01 is where the change log ends and I am running 1.10.01. I have no idea what actually changed between them except if I shut down I have to generate new key pairs. Shut downs are now about weekly and take about 10 mins or so. It isn't all bad. I just don't restart as often as I would like because it's a pain.
Thank You though. I had hoped more current code was available then the last time I pulled github.
EDIT: added date from executable.