I use 24/7 into the NVR. If I understand your response, by using the NVR, I cannot playback the previous hour! Is this a setting that can be changed?
If not, it's crazy that one cannot review recent footage. In an emergency, it could be imperative to be able to rapidly review previous minutes.
If this is the case and it's not user configurable, can we get an urgent firmware upgrade to address this?