У вашего броузера проблема в совместимости с HTML5
Here, my shiny Magnemite evolves, once into Magneton, and again into Magnezone. THIS IS TWO SEPERATE VIDEOS LINKED TOGETHER. It did NOT evolve once and then again right after. The first time it evolved I leveled up facing the Gyarados at the beach, and then I took Magneton inside Mt. Coronet walls and levelled up again, which made it evolve.
But from this particular video, I will agree that it looks like it evolves immediately after itself. But it does not in reality. I just wanted to put both videos together into one to prevent clutter.
Magnemite evolves into Magneton at Lv. 30.
Magneton evolves into Magnezone when you level up inside Mt. Coronet, only in Pokemon Diamond, Pearl and Platinum.
Thank you for your time, and I hope you enjoy the feature presentation.