Using the Melas tools, I edited an "Inspiration in a Flash" Voice (Sweet Pan (Flute) -- User Waveforms) and added three elements (Preset Waveforms) to create a Xylophone/Marimba layer that can be turned on using the AF1 button. Works fine in Voice Mode, also works fine in Pattern Mode, although the AF1 button does not light up when pressed in Pattern Mode. Same thing happens in Master Mode (accessing Pattern Mode), AF1 button works correctly, but doesn't light up.
I am layering the edited Voice with two other Voices in Pattern mode that have AF1 functions that I do not want turned on. Since I saved these as Mix Voices before editing the "Sweet Pan" I thought it would be easier to use Pattern Mode to filter out the AF1 messages than digging into the Mix Voices and editing there. Anyway this is where I noticed the bug after trying to use Master Mode to play the layer. As a workaround I set the two other Voices to a different Midi channel in Pattern Mode and then set up the layer in Master Mode by assigning the "Sweet Pan" Voice to Zone 1 (with AF1 turned on) and the two other Voices to Zone 2 (with AF1 turned off) To be clear, the AF1 function is turned on (not filtered out) for all channels in Pattern Mode, but only on Zone 1 in Master Mode. I am filtering Expression on all these Voices in Pattern Mode. In Master Mode, Zone 3 is set to a different Channel, with no keys active to transmit Bank/Program Changes to an External device and Zone 4 is off.
Anyway as it stands right now the AF1 button works but doesn't light up. Just wondering why? It works and lights up in other Masters I have setup, including one with Zone 1 transmitting internally and Zone 2 transmitting externally. This isn't a huge issue because the button still works, but knowing when it's turned on is important prior to playing the keyboard.
Could it be message conflict between the different AF1 Voices, some of which are receiving the AF1 command and some are not? Or the fact that it affects the Voices differently? (Turns on elements in one and sets mono/poly in another) A limitation of Pattern Mode? Something with the Melas editors? I checked the MOXF menu for Master Mode and confirmed the AF1 box is checked in Zone 1 and unchecked in Zone 2, 3 and 4 and like I said everything works as it should, except the AF1 button lighting up.