In case you need it, here's some more information for you all:
- I have tested it on two MacBooks, one iMac and one Mac Mini
- On the iMac (my daily work machine) I have the error once a month, not more
- On the Mac Mini I have the error after each restart (with a clean install of MacOS Catalina 10.15.6 (19G2021))
- Also with disabled network access the error stays
- I tried it also on different networks at different locations
- The MacOS firewall is disabled
- On my network (Unifi) there's no firewall enabled which blocks these ports
As you can see in the attached log file, the Dirac Live plugin walks through ports and every port has been in use (or at least, it thinks so). Eventually the plugin crashes while it has those errors in the log.
I also attached the JRiver crash log.
The logs are from one month ago, while I was debugging this issue for many weeks. Currently I'm only using my iMac which is quite stable (JRiver only crashes 4 or 5 times a week, not more, so that's fine by me). The Mac Mini is at my friend's place, I can always access it to debug more, if needed.