This is probably a problem with the midi keyboard I just hooked up to the FF400 midi in (evolution MK249), but I can't find the solution.

The Midi indicator on the front panel of the FF400 is flashing continuously - as though receiving CC data - but nothing shows up when tested with a Midi Monitor application.
Tried it on both midi inputs, same result.  Other devices don't have this effect, so am assuming it is the keyboard.

Mostly want to make sure this doesn't represent a potential problem that could damage the FF400.

Thanks in advance,
Chris