Image with little pink splotches

Hi all. Hoping someone in here knows about cameras as well as Premiere Pro. I'm using a C100 mkii. In my latest project I've noticed these little pink splotches (see below screenshot - they are ringed). I've tried cleaning and changing the lenses and it's the same, so definitely not the lens. I've tried cleaning the glass behind where the lens is mounted on the camera, makes no difference. Anyone know what this is please and how I can fix it? Is it sensor damage?