Nope! As I mentioned I used sandisk uhs i 64gb,170mb/s and 128gb, 200mb/s and64gb,300mb/s and tried other brands. I think this issue is not the matter of whether uhs i and uhs ii, even though the level of how often may be different. What I am saying is asking Leica more attention and swift action resolving the freezing. I don’t care about what the reason caused problem. We the owner of M11 should deserve more service from Leica. Don’t you think that is why we paid the higher price than that of other good products?