After using Lightroom on a Mac for sometime I suddenly get this error message. This happened after I had imported 1700 raw images. I have upgraded to version 6.7 and checked folder to export to id read/write, can anyone help please.
If you look at this photo in the Library Module grid view, does the photo have an exclamation point icon at the top right of the cell? Can you open this photo in the Develop Module and actually edit it?