we've transformed our website into a multisite to develop a new site, specifically for events.
For that I added a new page with a subdomain hidden link (will later be replaced with a new domain) within the network and activated the Astra Theme there, so I can use the Reference site „Speakers & Events“ as a baseline to build upon it.
I still can't add any Reference site, even though the site meets the requirements.
I've attached a Screenshot of the error message.
Thanks for the update on your multisite setup and sharing the workaround that you found. It's good to hear you were able to resolve it by exporting Types data from https://discover-wp.com/.
If you're all set with this solution and don't need further assistance on this matter, that's great. However, if you run into any other issues or have questions, feel free to reach out. We're here to help ensure your multisite, is running smoothly.
Let us know if there's anything else you need help with.