Scripts>Image Processor

When I have a large group of photos that I wish to convert to jpeg, I often use the image processor under the scripts tab of "File".  You have the option to save to the same location as the file you've opened and the program will save a jpeg under a folder it creates in the original location called "JPEG".  I have used this many, many times over the past several years.

Last week, I updated to the 2018 version and today was the first day that I used the script button to convert to JPEG.  Rather than adding to the files that was already there, however, it deleted everything and only added the scripted conversion.  Why would it do that?  Has anyone else had this to happen? The picture names were different and there was no reason to replace the entire file, but it did.