Campaign Classic v7: can't find the default recipient schema
We just migrated from v6.1 to v7 and now I'm getting an error when trying to update/preview any custom schemas, which says campaign cannot find the factory recipient schema definition.
Has anyone come across this situation? We have literally not changed anything else but attempting to preview gives this:

So the schema preview looks like this

This worked fine before:

The same happens with an extension to the recipient table - I tried deleting it and recreating the same one, but still get the same 'schema not found'
Anyone have ideas?