hello,
I was having an issue of "Device Malfunction" like every 5 seconds.
This seems to happen more often if I select a profile with "moving" LEDs on them.
I have the latest CUE and latest firmware, I have re-installed CUE several times and re-flashed the firmware several times.
Here's the logs if it would help:
[2016-03-16T08:37:46]: Device vid=1b1c pid=1b13 is marked 'slow startup'.
[2016-03-16T08:37:46]: Device vid=1b1c pid=1b13 is marked 'slow startup'.
[2016-03-16T08:37:46]: Device vid=1b1c pid=1b13 is marked 'slow startup'.
[2016-03-16T08:37:46]: Device vid=1b1c pid=1b13 is marked 'slow startup'.
[2016-03-16T08:37:46]: Device vid=1b1c pid=1b13 is marked 'slow startup'.
[2016-03-16T08:37:47]: Created new device object: K70 RGB; ready: 0
[2016-03-16T08:37:47]: Attached to device object K70 RGB: b=1 a=1
[2016-03-16T08:37:47]: Attached to device object K70 RGB: b=1 a=0
[2016-03-16T08:37:47]: Initializing K70 RGB...
[2016-03-16T08:37:47]: Failed to open device: vid=1b1c pid=1b13 path=\\?\hid#vid_1b1c&pid_1b13&mi_00#8&1d4a5187&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}
[2016-03-16T08:37:47]: Failed to open device: vid=1b1c pid=1b13 path=\\?\hid#vid_1b1c&pid_1b13&mi_01&col01#8&586c542&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}
[2016-03-16T08:37:47]: Initialized (st=1) K70 RGB.
[2016-03-16T08:37:48]: Device insertion processing complete for K70 RGB.
[2016-03-16T08:37:51]: Buffer write failed, 1.Device : K70 RGB,Execution result = 1, result = 0, platform error code = 2.
[2016-03-16T08:37:51]: Buffer write failed, 2.Device : K70 RGB,Execution result = 1, result = 0, platform error code = 2.
[2016-03-16T08:37:51]: Buffer apply for RGB key matrix cannot be performed for K70 RGB as writing to buffer was not successful.
[2016-03-16T08:37:51]: Buffer write failed, 1.Device : K70 RGB,Execution result = 1, result = 0, platform error code = 2.
[2016-03-16T08:37:51]: Fail counter for K70 RGB reached zero, setting status 2.
[2016-03-16T08:37:51]: Buffer write failed, 2.Device : K70 RGB,Execution result = 1, result = 0, platform error code = 2.
[2016-03-16T08:37:51]: Buffer apply for RGB key matrix cannot be performed for K70 RGB as writing to buffer was not successful.