Given they just released their Pro DX mixers for iOS and Android, any time they had to work on MF bugs went out the window. As i have pointed out before, Android is a pain in the ass to develop for connected devices and the installed base isn't worth it. Guessing that trying to figure our Android bugs and BTLE compatibility with cheap Android phones and tablets is why we're not seeing any updates. It's easy to assume if you're programming in Unity that your apps will be cross platform with Android - until you introduce a device that you have to connect to beyond a "dumb" bluetooth item like headphones...
For anyone thinking of getting into connected devices, pick iOS or Android, don't launch with both. Endure the whining from folks and ignore them. Don't bother with other platforms that are even more fringe (Windows Surface, Chrome) as the work done will never pay out.
Frustrated Mackie has fallen into this same trap.