This is usually caused by the incompatibility of the graphics API, as you assumed. The consequence usually occurs from the image effect or the shader.
Since your entire screen is “pink”, I’m thinking that your image effect is the problem. Try disabling image effect which is attached to your camera and see if the problem still occurs.,This situation is caused by the incompatibility of your device. Usually caused by the image effect attached to the camera or the shader which is used for the materials.
But since the entire screen is “pink”, I’m assuming the problem is image effect. Try disabling post processing image effect from the camera.