The import files function on my LR Classic seems to have changed. I import from an SD card, and it used to import the photos into my catalogues (organized by year) so that the photos arranged themselves by date shot within that year. NOW, it is importing them to the year folder, but under a totally new sub-folder titled SD Card, which means that I lose track of easy access to the dates each of my shots were done. Same thing happens if I import from a desktop folder... it shows a new subfolder with desktop under the year.
Thanks. It turns out that it wasn't the destination that had changed, but that the import had shifted from "copy" to "move." But your suggestion got me looking at things more closely, which helped me find the problem.