In trying to rate an image file by adding a star, while viewing from Content window, I can't do it either by clicking on the dots below the expanded thumb or in the thumb view below. Nor does the Ctrl button + 1/2/3/4/5 work.
No matter the file format, jpg, psd, raw or tiff. No matter the folder.
Under Edit>Preferences>Thumbnails, there is no option for checking Show Stars.
Something I must have done, but can't recall how to undue.