Exceeded maximum number of unique handles

[SimJoSt]

Ran into this just a few days ago as well.
Here is my write-up about it: Exceeded maximum number of unique handles for metaobject handle

tl;dr

• the limit of 20 seems to include all unique handle lookups on the same page
  • including lookups for other metaobjects
  • including lookups for metafields
  • not well documented
  • the error message is misleading
• maybe the limit for pagination is now higher than before: New pagination limits for Liquid & Storefront GraphQL API - Shopify developer changelog
  • it was 250 and 1000 for some time
• using .values_count allows you to define the limit dynamically to the amount of metaobject entries
  • credit goes to @teamdijon: Make Metaobjects available in paginate - #7 by teamdijon
  • docs: Liquid objects: metaobject_definition

However, it is interesting, that you could query more metaobject entries, when you switched to a different metaobject definition