WHY IN THE WORLD, WHEN I CLICK THE HEADER ORANGE TAB IN THE EDITOR, IT DISAPPEARS AFTER I CLICK IT?!?! IT DOSN'T EVEN BRING UP THE HEADER EDITOR!
Hello! When you click the orange 'Header' box you are not presented with the below menu? Is this happening on multiple sites? You may want to test an alternate browser also. Of course.. it never hurts to open a support case as well but what you are describing surly isn't' normal.
I agree with @Thomas_Connery . Try a different browser and if that doesn't work, support needs to be informed. This shouldn't be happening.
I'm sorry to hear this is happening when you are using the Duda Editor. If this continues to persist even with a different web browser, please contact our support team so that they can resolve this for you. Thanks in advance!