Changing theme blows away Confluence space

[ehem]

We followed the instructions for changing our space theme.  After confirming, our space now says "Not Found".  Any ideas why using this tool would blow away our space?  Here are the instructions from Confluence.

https://support.atlassian.com/confluence-cloud/docs/apply-a-theme-to-a-site/

[Nic Brough -Adaptavist- · Accepted solution]

Welcome to the Atlassian Community!

A change of theme is a change of the framework.  It has no effect on your data at all.  It's about viewing it.

Imagine you've got a copy of a good bok in front of you.  It doesn't matter what you view it through, the book is there.  If you choose to use a "theme" that totally obscures it, that's fine, but the theme does not affect the data.

[ehem]

That makes sense.  So hopefully our Confluence admin can figure out how to revert the theme so we can see our space.  I know this shouldn't normally happen, but as a user I don't have much insight into what's going on behind the scene.  Thank you for the response.

[ehem]

Well, our admin restored our space and just said don't change the theme again.  So we won't really know what caused it.  We call it the undocumented Nuke button now, so hopefully we don't find any more of these.