After recommending this online GEDCOM viewer I found several bugs. I reported them, and got the following reply from the developer. I have tested it and confirmed to him that he has fixed them.
On 28/06/2019 09:48, DrawMyFamilyTree.co.uk Admin wrote:
> Thank you for notifying issues with using the DrawMyFamilyTree.co.uk Gedcom file viewer. These should now have been fixed.
Martin