I’m using the custom firmware from the GitHub. It worked fine in the initial loading on the keyboard but when I went back to remap the backspace to a different spot it stopped working. For some reason with the top right key specifically it simply doesn’t respond anymore. That said when I use the lower level keybind the key still works so I know hardware wise it’s fine. The backspace works in other location but now that key is stuck and I get this error message. I’m not sure if I’m doing steps wrong but I did the same steps I did initially and had no issues