Eufy Cam 2C not detecting motion

I have bought and fitted the 2c set of cameras a couple of weeks ago. Both front and rear cameras were working fine to start with. However, 1 week in and the front camera has stopped detecting motion. I have brought it in, given it a good charge and done a reset. I managed to get it to detect my movement after this and the infrared light came on. However, after refitting the camera to the bracket, it is not detecting motion again. It’s only set on ‘human’ but even on ‘all’ its not detecting anything. In the process of removing the camera it did not detect my close movement. Please advise.