This is very sad to hear. Any chances you would still be considering it to work on MM?
To be honest, i revert back to Lollipop for the main reason that it doesn't work on MM. Some said that xtended settings is a better alternative, but it is DEFINITELY NOT. Not in any way it's better than STB. It has better tweaks, better UI, better user friendly aproach, easier to use, less bloat, simple, conservative and it have all the tweaks i need. Xtended doesn't even have the "close all recent apps at once" on Grid view of recent apps. So, it's really a great loss on MM.
I think i may stay on lollipop until STB fully works on MM, which for now is just wishful thinking.