Can user WITHOUT a license who has Sheet permissions set to 'Editor-Can Share', share a Sheet

SJTA

I have a consultant, who does not have a license, who I gave Sheet permissions 'Editor-Can Share'. They attempted to share the Sheet and received an error message saying that they do not have "sufficient permission to modify sharing on this item".

As far as I can see they have permissions, so I don't know why they are getting this message. Thanks.