Hello, I have ordered the Gen2 for the home cinema and moved the Gen1 to the living room. I did the upgrade because the home cinema TV (lg 75qned916qe) is still connected to the PC with a 4090. Before, when the Gen1 was still connected, Swisscom, PS5 and Xbox worked via the Syncbox on HDMI 1 (2.0). The LG TV only has 2x HDMI 2.1, one of which is eArc and reserved for the sound system. I had the PC via the remaining 2.1 Hdmi input (because of 120hz with 4090s) now that the Gen2 Syncbox came out, I upgraded to have ambilight with the PC as well. But now when I plug the Gen2 Syncbox into the HDMI 2.1 on the TV, the picture stays black. If I switch to the "old" HDMI input with 2.0, it works. And if I only connect the PC to HDMI 2.1 again, it also works, so the channel is not faulty. I even used an extra premium cable for the SyncBox output (the original one doesn't work either.) Pretty strange... Does anyone know what to do? Is it because a fibre optic HDMI is coming out of the PC? (I need it because of the distance)