Colour Space

I am using Photoshop Beta v.26.6

This probably isnt a bug, but its bugging me.

I have had difficulty exporting images to a particular site which expects colour space sRGB. It told me I was using Display P3. I had never heard of this and certainly havent selected it.

After trolling through settings I have discovered at:

Edit/Preferences/Camera Raw Preferences/ Workflow/ Colour Space it is set to Display P3.

This means that every image I have processed in Beta has the wrong colour space. 

I think that Display P3 must have been set as default when I downloaded the Beta. I think this is a mistake and the default ought to be sRGB.

There may be other opinions.