if you loose both your black keys, you will need two balck keys to reprogram them using RED one. trying with one balck always fails,
the procedure is above...
a clonable key reproduced by RED key cloning is somehow dangerous, because the balck key becomes the RED one, and you may lock your engine accidentaly by playing the key and could not even understand why it is locked..

)
what i suggest you is to buy 2 empty black keys from your Ducati dealer and re program both using RED key on your monster.