Unable to enable the visual editor

I am using the “Netlify Next.js + TS + MUI Starter” template without any modifications in GitHub. It builds/deploys successfully without errors. The preview works here:

During setup it told me that the visual editor was enabled. After deploy, it has “Enable Visual Editor” in site overview and configuration. When I click on it and click “Save”, I keep getting the error “Error deploying preview” on the same page with nothing happening. I am unable to enable the visual editor.

I have tried everything in all the docs I could find, talked extensively with the AI and searched this forum to no solution. Including relinking the repo, reinstalling the 2 GitHub apps, trying multiple browsers. The only thing that I originally did that was maybe strange was move the repo from my own GitHub account to an Organization account and relink it. Also, I chose only the one repo in the Github app permissions.

I’m not seeing the visual editor enabled in the UI. Could you navigate here and configure the preview environment?