So my 4 channel Recast will freeze (black screen) when watching a recording, and another recording starts on another channel. I initially thought my external hdd might be suspect so I removed it last night to do a surface scan. While there seems to be an issue with it, I did do a hard restart of FireTV Cube and Recast without external storage. Problem remains. Easily resolved, just press back button the recording page will be there and I can hit play to pick right back up.