I begin all my files with the date, i.e., 140915 for Sept 15, 2014. I created a file on Lake Superior which includes 170 images staring with 140909 and concluding with 140921. When I ask LR to import them from the hard drive (where the dates sequence correctly) it is starting with files dated 140914, then adds one file dated 140909 later in the sequence, then continues with 140911 and proceeds normally except for adding in several more 140909 images later in the sequence. I tried making a second folder with copies of the correct sequence but again LR imports in an erratic fashion that I have not encountered before. What am I missing here?