I tried to change the name of the Main (root) space to Right Media in the space settings "You must select at least one content type"
I thought there was no content in the root space. How can I change the root space name?
That's a bug that's fixed in the 1.0.4 branch (to be released hopefully next week). In the meantime, you can go to Admin Console --> System --> Settings --> Space and change the name there as well.
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