Sorry to hear you're experiencing this, as I can imagine it has been an inconvenience. I would love to look into this further for you. I have a great article that goes over some troubleshooting steps you can try to clear out the pink. Also, have you tried to restart your camera? Please let me know.
Note: Overheating can cause issues with video feed quality. Move your Nest Camera from a warm location to a cooler area to help resolve the issue.
Looking forward to your response.
I appreciate the help, Brad.
I have always had the night vision turned off as I have the camera facing outside though a window and the infra red lights would reflect in the glass. The camera is on the north side of the house, in the shade all day. I live in Ireland, it is currently winter, and the temperature of the room where the camera is located does not go above 18C. I have powered down the camera on many occasions and repositioned it. This is my second camera (I returned the first) and the problem persists and is actually getting worse.
Google needs to recognise that this is not an issue cause by us users, by how we position it or by what settings we use. Google needs to issue a software fix or, if need be, conduct a full hardware replacement programme.
A good start would be for Google to acknowledge that there is a problem with the cameras.