There have been reports of the PanV3 randomly stopping recording. It was captured in the Fix-It Friday thread:
Beta Firmware 4.50.4.4767 was subsequently released as Public Firmware:
However it may have since been suspended as there is no link in the Firmware & Updates page to download the Flash .bin for this version.
Beyond that, as @K6CCC has already mentioned, the subscription is important to know. It is only compatible with Cam Plus, so without it the 5m cooldown would be in play. Also important are the Cam’s sensitivity settings, the Detection Zone, and the Night Vision Mode (color vs IR). All these could change effectiveness in certain environments.