New Stick up Cam no detection

Just bought a new Stick up Cam, latest model. I have 2 older models which work fine around the garden. The new one does not seem to detect anything. When I set it up it detected one movement but since then nothing. When the older ones detect movement a blue light comes on, nothing on the new one. Battery is 100% record and motion both enabled. WiFi is approx 27MBps/17MBps. The same on iPhone, iMac and iPad. Any suggestions? Thanks