This happened to me last week. I fixed it after reading through some of the troubleshooting information from FM. What I did was plugged in the board, then pressed and held the power button on the board until the indicator light on the power brick turned from green to red. After doing that, the board charged as normal and has been good-to-go ever since.
Believe me, I was confused and concerned for 48 hours while I had it sitting on the charger doing nothing. When that didn't work, I dug in and did some research. Hope this helps!