I have been using Vantage for a few years, but suddenly (probably after wordpress updated to 5.8.2) the masthead is gone, i.e. the logo, tagline, and navigation menu do not show up any longer. Under Customize > Theme Settings > Layout, the Masthead Layout, Masthead Menu, and Footer Layout do not contain anything and do not let me choose options.
I have tried disabling plugins, but to no avail.
Can you suggest what I could do to restore the masthead?