https://wccftech.com/oneplus-9-pro-owners-claim-that-the-phones-are-heating-up-too-easily/

It has only been a while since the OnePlus 9 Pro went official and we are starting to hear complaints about the phone popping up about the phone. The devices are finally reaching many customers around the world, and we are hearing reports about the phone overheating rather easily. Especially during the times when the camera is being used. This was reported by AndroidPolice, who also ran into similar issues. Thankfully, OnePlus is aware of the fix and has talked about how they will be addressing this in a series of updates in the coming weeks.

At first, we thought that this is an isolated issue but the reports of the OnePlus 9 Pro heating up are widespread across the web including the official OnePlus forum. While the phones are heating up due to various reasons as per the reports, the most common culprit seems to point towards the camera. Even the camera app gives a warning about the temperature increasing, so it certainly gives more weight to the fact that the current software version needs to have some issues ironed out so the cameras work perfectly fine.