Answer of your leaving message
I am no longer receivingnotoficatiobs of movement nor are they being displayed on my timeline. Previously I could see markers on my timeline which you could go back to where movement had been detected

by Adam

Dear Adam. thank you for the mail. First, please ensure motion sensor is on.

Please format the camera memory through app setting. If no help, please hardware reset the reinstall the camera to identify if it is a hardware or software matter. Yes, you are correct, if no alert is shown in the timeline (memory), it means no alert would be sent out to the mobile devices. Thank you.