I have a relatively large micro SD inserted into my Chromebook for memory expansion. Lightroom suggests that I move my photos there. I would love to be able to do that, but when I do, Lightroom doesn't render any previews. They are all gray in the grid view. They are fine when I select an individual image, at random of course because I cannot see them.
If I return the photos to internal memory, then the previews show up fine. I specifically have the SD card to unload the internal memory. It would be great to be able to use it...