Hi @ph59,
I made a test submission and the submission worked. Could you please check whether the images got uploaded?
Possible to share a screenshot of what exact you notice on your side during the upload, so that we could have a better idea?
If you could also share the form export it would be helpful. Please check the following doc on how to export a form:
https://wpmudev.com/docs/wpmu-dev-plugins/forminator/#import-export
If you are concerned about any sensitive information in the form, then you can duplicate your form, remove any sensitive information, and then export it.
You can share the export file via Google Drive, Dropbox or any cloud service in the next reply.
Looking forward to your response.
Best Regards,
Nithin