GraphQL query returning empty posts in production, but not in dev

Ever had a GraphQL query return posts in dev and be empty in production...? New weird one today.

using watchMode and overlayDrafts in dev environment could do that (if you had posts drafted but not published)

Hmm. The same posts appear elsewhere on the site. But they just won’t render in this one page type.

Update: For some reason

filter

in my GraphQL was returning empty on Netlify’s build, but not locally, in gatsby build, or gatsby dev, or with netlify dev. Weird!
Had to just query everything and filter out from the results manually.