I got the device and have set up the knob inputs to match the keypresses I usually use to adjust things like AP heading and altitude, radios, etc. It’s acting strange though… if I run Notepad++ and turn the knobs every input character is registered and printed, all very fast and reliable, but when I do the same in FS2020 it’s only registering a fraction of the inputs. It’s not usable in this state, but it’s not the device that’s at fault, it’s something to with FS2020. I’ll keep debugging.
I have a keypad a bit like the third one. I initially had the same issue you described until I bound rotary encoders to emit three keypress events instead of one.