esc q500 4k led flashing

I took the Q500 4K out last night for the first time in a month, with newly charged batteries. Turned on the controller and waited for it to acquire satellites. But when I turned on the Typhoon, the Typhoon repeated a series of beeps indicating an error with initialization. I switched batteries...

Does any one know what the 2 small BLUE LED's on the ESC boards indicate. I just noticed that on 1 of my 4 ESC;s has one of the two blue leds is constantly flashing rapidly. The Q500 seems to pass all the GUI analysis and fly's, but I am leery about the Flashing ESC. I really dont want to fly...