I'm developing my first Drupal 8 Webforms application. It had three pages to start with and I had managed to get it to do what I wanted it to. I have also developed a WebformHandler to go with it.
I needed to add an extra page between the old 1st and 2nd page. I created this using the "build" tab and it was created in 4th position in the list of pages, so I dragged it up to 2nd position and did "Save Elements".
But then, when I used the "View" tab to try out the form, the dialogue started at the 3rd page (the old 2nd page). I have now deleted the new 2nd page and appear to have the same old configuration that worked, but using the "View" tab still ignores the first page.
I have flushed all the caches; I have looked in the database for anything obvious (but not found anything); I have looked at the YAML files in the module I created for the Webform; I have even rebooted the server.
I have tried to scan the entire Drupal file tree looking for files that have been modified in the last couple of hours (since the webform last started correctly), but I haven't managed to find anything, except the WebformHandler, but that isn't called before the initial page is shown.
Using a different browser (Safari instead of Chrome) produces the same result, so I guess the problem is on the server and not the client.
Somewhere, something is holding information about my webform: could anyone help me to locate it?