Rails nested routes not working as expected - ruby-on-rails

Question

I have nested resources in my routes like so. These work perfectly on my other rails 5 app, but not on my rails 6 app. I cannot figure out why it recognizes only the first level of nested stuff.
resources :blogs do
member do
put 'like', to: 'blogs#upvote'
put 'dislike', to: 'blogs#downvote'
end
resources :comments
member do
put 'like', to: 'comments#upvote'
put 'dislike', to: 'comments#downvote'
end
resources :notations
end
Here is what rake routes gives me:
blogs_user GET /users/:id/blogs(.:format) users#blogs
like_blog PUT /blogs/:id/like(.:format) blogs#upvote
dislike_blog PUT /blogs/:id/dislike(.:format) blogs#downvote
blog_comments GET /blogs/:blog_id/comments(.:format) comments#index
POST /blogs/:blog_id/comments(.:format) comments#create
new_blog_comment GET /blogs/:blog_id/comments/new(.:format) comments#new
edit_blog_comment GET /blogs/:blog_id/comments/:id/edit(.:format) comments#edit
blog_comment GET /blogs/:blog_id/comments/:id(.:format) comments#show
PATCH /blogs/:blog_id/comments/:id(.:format) comments#update
PUT /blogs/:blog_id/comments/:id(.:format) comments#update
DELETE /blogs/:blog_id/comments/:id(.:format) comments#destroy
PUT /blogs/:id/like(.:format) comments#upvote
PUT /blogs/:id/dislike(.:format) comments#downvote
notations GET /blogs/:id/notations(.:format) notations#index
POST /blogs/:id/notations(.:format) notations#create
new_notation GET /blogs/:id/notations/new(.:format) notations#new
edit_notation GET /blogs/:id/notations/:id/edit(.:format) notations#edit
notation GET /blogs/:id/notations/:id(.:format) notations#show
PATCH /blogs/:id/notations/:id(.:format) notations#update
PUT /blogs/:id/notations/:id(.:format) notations#update
DELETE /blogs/:id/notations/:id(.:format) notations#destroy
On my other app, for example, it would produce
/blogs/:blog_id/comments/:id/like

Answer 1

I make a copy of your routes and replicated in two apps (Rails 5 and Rails 6) and both produced same routes (without three nested level). If you want the /blogs/:blog_id/comments/:id/like route, you must do a small change.
resources :blogs do
member do
put 'like', to: 'blogs#upvote'
put 'dislike', to: 'blogs#downvote'
end
resources :comments do
member do
put 'like', to: 'comments#upvote'
put 'dislike', to: 'comments#downvote'
end
end
resources :notations
end

Answer 2

You are missing the "do" "end" block syntax
resources :blogs do
member do
put 'like', to: 'blogs#upvote'
put 'dislike', to: 'blogs#downvote'
end
resources :comments do # here
member do
put 'like', to: 'comments#upvote'
put 'dislike', to: 'comments#downvote'
end
resources :notations
end # and here
end
Anyway, more than two levels of nesting is discouraged by the rails guidelines.