Editing image disapearing in LR5 develop module?
I did a short search and didn't see anything like this reported so here goes.
I have noticed when working with CR2 files in the develop module that when I do certain operations the editing display image just goes blank. Once this happens there seems to be no way to get it back. The filmstrip thumbnails are still there but clicking them does not bring them onto the display. They show up fine in the library and other modules (even after this happens).
The only resolution seems to be re-starting LR.