In the new metahuman character editor, everytime I try to auto-rig or create Full rig, I get an error message saying I am not logged in. Same thing if I try to downlaod textures. : LogMetaHumanCharacterEditor: Error: User not logged in, please autorig before downloading source face textures

I had the same problem when trying to download textures. In my case creating full rig prompted me to the consent page and I was able to download textures then.