Got my MM yesterday . Took it out for a little walk after dark. As with my M9 (and M8.2) set to discrete mode. After a few shots, camera froze, i.e, did made the shot but then did not clock he shutter. Also, I was unable to shut down the camera, but had to remove the battery. (Note, I was not shooting rapidly and in single not continuous mode.)
I understand that others had the problem as well, and that it also occurred with the M9. (I never had that issue with the M9.)
I was looking in this forum and the LUF, but could not find a thread with a solution. Any suggestions.
I was using an older SD 4 GB card, which worked fine on the M9.