Purple tint/shadow on camera after updating to ios 18.2 (iphone 13 user)

I purcahsed my iphone 13 last sept 30, 2024. I updated last week to 18.1.1 and noticed that the battery drains faster compared to previous ios. Camera was still good. Then just yesterday dec 12, 2024, decided to update to 18.2 hoping that it would address the battery issue. Then noticed that the battery got okay but my main back camera started to have purple shadow or tint in low light. Is this a software issue? I never dropped my phone and always careful with my phone. I dont use this while charging.