I've had problems recently with my 940D trying to go to an input (HDMI 1) that doesn't even have an HDMI cable connected. I use only two inputs, HDMI 4 for SDR and HDMI 2 for HDR. I use a Harmony One remote, but i don't have any routines that tell the 940D to go to HDMI 1. Another weird thing that happens every once in a while is that after the input is changed using a command from the remote, the new input stays in an overlay at the top of the screen, and the only way to get it to disappear is to manually choose the input again. I guess some of this could be remote-related, but I've had this remote for years and never had these problems until recently.
Custom UFW-15 (2)
Rocket RS850 (2), Rocket Bigfoot Center, Rocket RSS300 (2), Rocket RS250MKII (4)