I have the delock between my PS5 and my Denon sound system. Now my experience, every time I change the source on the Denon the Toslink signal is gone. The picture works, but the Toslink signal only works again when I restart the device. Whether I use HDMI-CEC with the PS5 or with the Denon makes no difference either. I also tried the Delock between my beamer and the Denon, but then I get no signal at all via Toslink and no picture either. Since my beamer only supports 4k at 60 Hz, HDMI 2.0b is enough for me, which also works without problems, unless the Delink gets too warm, then it's over at some point. I'll try it for a few more days, but otherwise the device will go back, because getting up every time after switching is not what the inventor intended.