I am sorry I can not be of much help there. The previous version I used was the 3.2.2 - My boat (including the Shipmodul) is sitting on the hard
2500 km from where I currently work, and I haven't had the option of trying out the intermediate Beta versions.
One observation: The Electronics
(GPS, shipmodul etc) needed to be on before opening OpenCpn
- if it was done the other way araound OCPN wouldn't pick up the signal (it is not a problem - but maybe it might help you in understanding "how it works"). Once OCPN has the signal, the PC can go in and out of hibernation and still hold the signal.