The latest Chrome update has unfortunately introduced a problem that affects the uploading of Image Assets from the Home screen or Finder. This issue affects CM1 5.4 and lower versions. When you try to upload an image, the system returns an error that the image file format is invalid and doesn’t create the image in the system.
Percussion Engineering is actively working on a hotfix update for this.
As a temporary work around we recommend using the Bulk Upload gadget on the Dashboard to upload images.