It's a complex plot twist. In a particular storyline, she was exposed to a powerful energy field that disrupted her mutant abilities, causing her to lose the spikes.
Well, from what I remember, it might have been a result of a powerful enemy's attack. Or perhaps it was a risky move she made to save someone and ended up losing her leg in the process.
Storm lost her powers because of a specific villain's scheme or a complex plot twist in the comic storyline. Sometimes, it's a result of external forces beyond her control.
Noble Shen's first pregnancy was fake. Consort Hua and the Imperial Physician colluded to deceive Shen Mei Zhuang, making her mistakenly think that she was pregnant. Then, he would expose her pregnancy in front of the Emperor. This was the plot of Legend of Zhen Huan.
Storm has experienced power loss in the comics. This could be due to magical interference, cosmic events, or other complex plot developments. However, her character usually finds a way to overcome or regain her abilities over time.