It happens since we fixed an issue discovering some devices, before MM was checking the GoodOutput field but some device donnot set the bit 7 (Data is being transmitted) so MM wasn't seing it, so we donnot check the good output field any more, that's why you see universe 0 in latest MadMapper releases.
Hi Matthieu,
With reference to
viewtopic.php?f=20&t=33304 , it was the MergeMode which caused that the node was not visible in the list.
The Bit 7 Set – Data is being transmitted, is 0 at start. And is set when DMX data is being received and outputted.
- Arjan
http://www.orangepi-dmx.org/allwinner-h3