I have an SD card with pictures all in one directory and taken on different days.  The files are named like this.  20161101_141211.jpg where 20161101 is the date and 141211 is the time.  I have checked and all of the files have the correct EXIF data as far as DateTime and Date TimeOriginal (they both match each other and the file name). 

I have always imported my photos using Photo Gallery with the Folder Name set to "Date Taken + Name" and File Name set to "Original File Name".  Then when I get to the page where you select the groups you want to import, I move the "Adjust Groups" slider to be "1 day between groups".   This gives me folders (i.e. 2016-11-01) for each day that photos were taken and the pictures taken on that date inside that folder. 

However now the "Adjust groups" doesn't seem to work.  I slide it to "1 day between groups" and a group will be not be "11/01/2016", instead it will be "10/31/2016-11/1/2016".  Then if I import the photos, all photos from 10/31 and 11/01 will be in a directory with the name "2016-10-31" and there will be no "2016-11-01" folder.  I check the EXIF data once again after importing and it has remained unchanged.  So when browsing inside of photo gallery the photos are grouped correctly (i.e. the November pictures will be in the Nov grouping and the Oct photos will be in the October grouping). 

So Photo Gallery is reading the dates correctly, it just refuses to actually put them in folders separated by 1 day.  Some will be 2 day groups, others will be 3 day groups.  I can't seem to find any options to correct this.  Thanks for any suggestions.