Drupal 11 deprecation error details

#lazy_builder value 'mixed' at key '0' is invalid.

Occurence count Affected project count Occurs in a top X project by usage Category
2 1 10000 Other problem
Filter projects
Project Top X by usage Occurrences Sort ascending
ajax_big_pipe 1.0.x-dev 15000 2


Results are from dataset #307947 from 2024-10-12T12:47. Report is ran by the Drupal Association regularly.