As mentioned, I do not think that this is device specific as long press worked perfectly with all devices (both Bluetooth and IR) before the last update and now it does not work with any of them. I have recreated commands (which didn't fix anything) and tested the long press commands on a short press (they work). But, as requested here are the devices: LG 55NANO756 TV, Amazon 4K FireTV, Microsoft XBox One S, Raspberry Pi 3 Model B+, Humax HDR-2000T 1TB