I was recently running CM 12.1 and decided to try Android M. I followed the directions in Schischu's thread. If I only load Android M and G Apps Mini, it works. However, when I try to flash Super SU (I've tried 2.50 beta and 2.52 beta) my device hangs at the Android M boot animation. If I allow TWRP to flash it's version of SuperSU it also hangs. I'm running TWRP 184.108.40.206. Any help would be appreciated.