When creating a 'Top Rated' block in ezflow, if you fail to define a "limit" attribute for that block, it will fail to display anything once published. There is no indication that the field is required, no default pre-filled value, and no error message when publishing the block without filling-in the field.

Steps to reproduce

1. Create a folder with two articles
2. Rate each article with any number of stars
3. Edit the front-page in ezflow and add a "Top Rated" block, select the folder created in step 1 as the source
4. Fill in the "title" field, leave the "limit" field blank
5. Publish the front-page and verify that the block's title is visible, but its content is blank