Why does the bright place of the photo I took with SLR keep flashing?

I want to know what brand of camera you are.

You turned on the "highlight warning" function in the camera (different cameras say different things, and some call it spot warning). This function is to make it easy for you to quickly look back at the ratio of the brightest light to the darkest light in the photo after shooting. If you put the photo in the computer, it won't flicker. Can be closed by single disc; If it is a Nikon machine, you can press the "INFO" button on the panel to select directly.