Hi, Will!
1. Please confirm the Motion detection alarm has been triggered on IVS Client.
2. Please confirm whether the CPU occupancy of the VCN server was too high on June 15th.
The VCN server CPU occupancy and cache reclaim frequency is high when the motion detection warning triggered, so it may cause the cameras to fail to record.
Solution
Modified the cache reclaim threshold value from 80% to 90%, which will help reduce the CPU occupancy rate.