I was working in a folder, selecting individual images to delete, one by one. I had deleted 3 (delete from disk), selected the 4th one to delete and all 41 in the folder disappeared. I've moved them back to the folder from the Mac Bin and re-imported them into LC, but of course I have to re-edit them again.
This is not the first time it's happened. I've been a Lightroom user for about a year and this must be the 3rd or 4th time it's happened.
I am 100% certain I had selected only 1 image (though I have been wrong about things before in my life!). Has anyone else had this happen?
I should add that I am sure that when I selected 'delete from disk' that it was telling me only one image would be deleted. My first lesson learned from today is that in future I will pay particular attention to that information field.