the cyan crystal is bugged...
equip one lightsabre with a cyan crystal, and one any other color, change area, and the cyan lightsabre is out and blade is fully extended...until used in combat, or you press the "y" button to manually flurish it, it won't retract into the handle...
also, this is rather obscure, but it happened to me...
i once had all 3 components to build my lightsabre in nar shadda, and the ONLY color crystal i had was cyan...the screen where you select the color crystal showed "cyan" and i selected it...
it looked like it was going to be built, but it refused to make it and i lost all 3 components..(i think, it happened a while back and i can't remember) but it didn't make it correctly...
pity, i really like cyan color...