Hi - not sure if anyone else has the same problem. Did the 2.0 upgrade (non 4k) on both my x70 cameras. However, one of these cameras refuses to simultaneously record to both SDXC cards. Works fine on the other x70... anyone have the same issue?

tested it jusn now (v2.0, non 4k, proxy ON 1280X720) with two SanDisk Ultra 64GB SDXC 40MB/s Class10 - OK.