Custom master page breaks "Change the look"

  • In Design Manager: Edit Master Pages click on "Create a minimum template" and make sure the new template is published:

Create a minimal model
Publish the main page


  • In Settings of the main page of the site set this new master page as the default page for pages and system pages:

Define the model


  • In Change the look choose one of the default styles, for example Orange:

Change the look


  • The following designbuilder.aspx The page is suspended without preview (with the message "Work on it …" at the top right):

designbuilder.aspx crashes


  • Click on Try it has a correlation identification error:

Correlation identification error


Can someone help with the missing step?