I updated my site manually to 2.3.1 the other day, and just tried to edit a couple pages that are built around Classic Promo Card elements. When I open the page in Pro, I get a massage:
“This element could not render due to invalid template markup. This could be due to changes introduced by a third party plugin. The front end of your site should still function normally.”
Is there a more direct way possible to debug that error besides disabling and enabling plugins? I’m just curious, before I go to all that trouble.
I can still edit in wireframe mode, and the pages look fine on the front end, so no big worry. If I need to, can I just flip back to the older version of Pro? It’s still on my server, named pro_old…
Edit: Oops, well—I take some of that back. Even though the little “content saved” box pops up, it appears it’s not saving changes I make to the wireframe. Huh.