"TypeError: review.book.map is not a function" error when running GetStarted example page https://localhost/reviews

[rendzina]

v3.2.15 in docker: Having followed the GetStarted guide to the end (with books and review entities successfully created via the swagger interface), I created the 'Next.js Web App' skeleton Next.js app. When I click on 'Reviews' for a book (https://localhost/reviews/1), the app throws an error "TypeError: review.book.map is not a function". Message is:

Server Error
TypeError: review.book.map is not a function
This error happened while generating the page. Any console logs will be displayed in the terminal window.
Call Stack
Show
webpack-internal:/components/review/Show.tsx (228:67)
renderWithHooks
file:///srv/app/node_modules/.pnpm/react-dom@18.2.0_react@18.2.0/node_modules/react-dom/cjs/react-dom-server.browser.development.js (5658:16)
renderIndeterminateComponent
file:///srv/app/node_modules/.pnpm/react-dom@18.2.0_react@18.2.0/node_modules/react-dom/cjs/react-dom-server.browser.development.js (5731:15)
etc...

Also, when I try and run the admin app https://localhost/admin, it throws an error "TypeError: undefined is not an object (evaluating 'theme.palette.mode')"

Thanks for help