Realms Edit screen missing download after the latest update

I have two realms showing at the worlds tab. When I hit edit (pencil) I only get a screen showing options to upload worlds to my Reals server. I also get a "Manage Realms" tab but that does not have a "Download" capability like what used to be there and all of the online help seems to think should be there. I see a "My World" button but I am not about to upload a new world and overwrite my own world. I need to download my realms for offline backup. People have spent too many hours creating my realms and I don't want to lose them when I try out other worlds on realms.  My version is 1.17.11