After loading up an M4L patch I had been working on with an older computer and version of Live and Max, I found that after the LEDS received their first note, they couldn't change after that, so if you sent a '64 96' into [midiformat] to [midiout] to Quneo Channel 3 in Grid Mode, the corresponding corner of that pad would show orange. But then after that it doesn't change, even though it looks like it might be receiving the note data.
Another example would be if you use a [line] to have LEDS change color from green to red; they don't do that anymore.
I found after troubleshooting that it's the live 9 beta, because it works fine in the official 9.1.5 and also previous beta versions. Never had this problem before. If other quneo users with the 9.1.6b1 beta want to try this out with their please say if it works for you or not. My preset is in grid mode set to receive pad leds on channel 3.
Put a fresh Max Midi effect in a midi track and delete everything in there and then paste the patch below.
Then if your quneo is set right (making sure Live midi channel is set to send to quneo on channel 3) then set the integer values between 0 and 127 and see if the led changes.
Will post this on their beta forum as well.