ETC Element - Flashing / Blinking Submasters - what happened?

Just curious ,student turned on our ETC Element board and said they didn't touch anything, however when I got to the board all the green lights were all flashing in unison, (1-60 submaters were selected on the channel / submaster dial) Got it to stop however, I was curious what might have happened and if I should worry about anything into the future for the board?

Related