Seadra won't evolve
I'm using FireRed Version. My Seadra is female,level 51, and it holding the Dragon Scale that is necessary for it to evolve. I traded it with my homie who has LeafGreen hoping it would evolve.
After the trade finished, the usual "Seadra is evolving!" message came up, and the evolution started, but after a few seconds, right before it starts changing shape, it cancels, played Seadra's cry, and in the text box at the bottom it said "....?" and it didn't evolve and brought me back to the trade screen.
Why is it doing this? I was under the impression that a Dragon Scale was all that was required for evolving Seadra.