Arlo Go Charging Fault (red indicator). What does this mean?

[Fire-Cam]

I have a 40 camera system and half of my cameras, almost over night, started showing a charging fault (red charging indicator). They are all showing 100% battery life, which I knew wasn't correct. I monitor these cameras daily and know the battery levels prior to the charging fault indicator. 

1) What is this indicator telling me?

2) How can this issue be resolved?

[jguerdat]

Is this on the app? Which one? Have you tried the web client to see if the same thing happens?