FS5 audio not recording meters slash

Hello,

I am a new user to the FS5, but long time Sony user. I had wireless mic running on channel one and on-board camera mic going to channel two. I had been recording and monitoring both channels during active drill. I believe I bumped some menu switch because I lost audio (recording and monitoring) to both channels. When looking into viewfinder, my meters had a circle with a slash through it (prohibition symbol) and stopped recording audio. Has anyone ever seen this before and how did I engage it?
My battery ran out shortly after and when I switched to a new one, the audio was there and the meters were active again.

Any help would be appreciated.
Joe Larger
Arizona Department of Transportation

Have not had the issue since, so to answer your question, no. If it shows up again, I will let you know. Will try the tried and true method of turning off/on and replacing the battery.