Armed but only detecting motion on one of the three Arlo lights.

[jonathanriffey]

I have three Arlo lights, until tonight all were working and came on when detecting motion.  Tonight two come on when detecting motion and the third does not.  The light works (I can turn it on manually from the app) but does not detect motion, even when I wave my hand directly in front of it. Solutions? Thanks in advance for your time and expertise!

[TomMac]

try and reset light by pulling and replacing battery