Hi there, both of my two cams, C2 and RLC-410S, cannot view playbacks because they are played too fast even if in 1x speed, in certain days. 
Here’s the phenomenon: before 3/1 playbacks are ok for both cameras. Starting on 3/1, both camera’s playback speed is around 10 times of normal speed even though playback speed is set to 1x  It’s so fast that i cannot view the details. I tried to set the play speed to 0.25x but it’s still too fast though it’s slower than before.  I tried to download the clips but failed. Also i noticed that all the clips are only 6 seconds though the events are actually longer. After rebooting they started to record clips which be played normally, but previous clips are still the same. 
This phenomenon happened several times in the past. As both cameras have the same issue at the same time, it doesn’t look like sd card issue. 
Any idea what’s wrong?