I get erratic behavior from my two grid controllers when I connect them together to the computer or my Midi Interface (it also accepts USB Midi Devices). Sometimes the second module (the one without cable and just magnetically connected) doesn’t appear in the grid editor at all, sometimes it does not load all features (e.g. not all lights work and not all midi is sent). Both of the modules alone work without any problem, but together it is a mess and totally unreliable. What could be the reason for this behavior? It does not seem to be a power problem, as I tried it on USB ports that load an iPad or Laptop. But something is wrong with the way it is programmed.
I am not really sure how to share the code here, as I cannot attach any downloads … and uploading via cloud does not seem to work for me.