In the update you will find the following feature update:
PhotoMatch now verifies folder and image names before images and data are uploaded to prevent the photographer from overwriting images.
➡️ With this change, PhotoMatch can only upload images that were taken via PhotoMatch.
➡️ Dropping images into the PhotoMatch hot folder that were not taken via PhotoMatch will not upload.
➡️ If you have images to upload that were not taken via PhotoMatch you will need to use SNAP or CCS Uploader to upload those images.