The opaque area shifts around when I move my cursor, but not in the same pattern as I move the cursor. Sometimes a second large cursor |> appears in the opaque area but it disappears when I move my regular cursor. If I move my regular cursor over the opaque area and press the spacebar or begin to type, the opaque section disappears over that line, but remains over most if not all of the rest of the document.I am using a Macbook Pro running the latest OS “Big Sur”.
(edited by ajlittoz to display the screenshot as the paperclip upload tool has been used instead of the “slide” tool)