When running sACN from a single widget with a PC, I am seeing that the console only sends partial sACN packet up to the address you are using unless you manually make channel 512 have a value of 0.
Then once you clear channel 512 it sends the full packet until reboot.
Upon reboot, it will exhibit the same behavior.
It should always be sending full packets.
This was seen and tested on sACN Viewer