Hi Jayne
It appears that you may have been uploading content using the
Upload lesson button in the SmartBuilder portal using
this method. If you were doing this, you need to upload the zip file containing the published lesson (not the source sb4 file, or something else).
Alternatively, you can simply
upload directly from the SmartBuilder publish window, which is faster and easier.
Let us know if you have any questions!
- Nav