I’m using West free. I made a test page and have added a few elements. At some point I saved changes, refreshed the page and I got a blank page. (see screenshot).
If I click on ‘xclose’ the elements reappear. (see screenshot)
When I click on ‘Edit in live composer’ again I get the blank page.
I tried rebooting, disabling all plugins and duplicating the page, but the problem persists.