On both my sites which use Toolset plugins, after updating to WP 5.6, I am trying to edit NON-TOOLSET Pages.
These are Pages made with the Classic Editor plugin, not Gutenberg.
Link to a page where the issue can be seen: It's on the back end.
I expected to: Edit pages normally.
Instead, I got: a Toolset "Layout for Pages" screen which would not allow me to do anything else. Even using the WP Admin menu, every click simply opens a new instance of the "Layout for Pages" screen. I'm attaching a screenshot.
This is happening *only* on sites using Toolset, only after updating WP to 5.6.
Needing to edit a Page, the only workaround I found was to disable the "Toolset Layouts" plugin, do my Page editing, and then re-activate "Toolset Layouts".