Hmm looks like the problem is not specific to GB – a lot of core block has the same issue as well:
https://www.screencast.com/t/kIzJw0Z2
Something messed with one of two things:
a) how the page is rendering in the editor
b) how the page was saved last time it was saved
For example, in the screenshot, it shows that the core heading saved itself as a h2
, but it’s displaying as a h3
in the editor.
Something, at some point, became corrupted.
I believe you would have to rebuild that page.