Unable to display the image label setting in the FileUpload field when the parent record has not yet been created

Need Help
#1

In OctoberCMS version 3, I was able to configure the image label using the fileupload type even when the parent record had not yet been saved.

header:
            label: Header
            type: fileupload
            mode: image
            span: auto
            useCaption: true
            deferredBinding: true
            imageWidth: 400
            tab: Pictures

However, after upgrading to version 4, this now results in an error message:

Unable to find file, it may no longer exist
octv4err

Is there an additional setting required in version 4, or has the process itself been changed? Thank you for the information.