I only have freeze problems in my X-T2 if i use the Lexar 1000X 64 GB "UHS-II" card , every time i use it the camera freezes , so i change for my old thrust SanDisk UHS-I Extreme Pro 95mb/s card and no issues for the last 3 weeks , no more freezes . So I´m using the Lexar 1000X 64 GB "UHS-II" card on the X-T1 and had no freezes too , so I´m think is a problem with this Lexar 1000X on the X-T2.