Your support plan date will be shown in General settings. It lasts for 12 months after purchase. If after that time you install a newer version, it will indeed go into demo mode. You can either install an older version that fits your original support plan date, or buy another 12 months of support. D...
Good point. Audio watchdog could explain the new behaviour if audio is enabled in BI5 for a camera with no audio. Then you can fix the remaining cameras.