I’m unsure why, but sitemaps are not currently showing the site’s full URL. Since the missing part (https://tools.mojave.io) is being pulled from an environment variable, I suspect that it’s just returning as null, which wasn’t happening in development.
Fixed. Abandoned previous strategy of simply using the environment variable to set the site’s base URL, unfortunately this seems too unreliable.
I’ve opted to simply create a constant to hold this info.