Iphone 13 mini pictures showing vertical gray shadow-like bars when taking pictures under bright light

I am getting a dark vertical shadow next to a sort of white blob whenever I take pictures under bright lights. These are 6500K LED studio lights. The "shadow" tracks with the camera, (stays fixed in the frame when moving the camera) and is recorded in the image taken. This is sort of terrible because it means I can't take clear pictures with my phone using LED lights without this dark shadow or light blob across the frame, and it will not go away. It occurs using the native Camera app and third-party apps such as the camera in Adobe Lightroom. It's in the camera hardware/sensor as far as I can tell. What is going on? This has always been an issue but got worse yesterday when my phone updated to iOS 17.3.1

What is going on and how can I make it stop?? Attaching pictures that show the effects of this when shooting a backdrop evenly lit by standard studio lights. Also attaching a pic that is taken from outside the shooting area, showing the light setup and showing the backdrop is evenly lit (more or less - as noted in the image, the upper corners are dim but that doesn't matter for my work)

I'm stumped and pretty dang frustrated. It's like the sensor is freaking out and blowing out a part of the image and underexposing another part. Sometimes it's more a vertical dark bar spanning the whole frame - so not only is this glitch irritating, it's also inconsistent. Come on here. This camera is supposed to be phenomenal, but it does this??

I need even lighting here in my images and I've worked really hard on this array to even the lighting out across the center of the backdrop, yet the camera makes all the work completely useless.