Source Strapi v5 doesn't contain any fields in types

Describe the bug

I'm using the Strapi v5 version of gatsby-source-strapi (#478) with yarn link.

The collection and single Strapi types configured in my gatsby-config.js are found but they do not contain any fields. Even though the fields exist and are populated in my Strapi instance. When I use gatsby-source-strapi@1.0.3 the fields on the same types are found.

This is the error I'm getting:

 ERROR #12100  API.TYPESCRIPT.TYPEGEN

There was an error while trying to generate TS types from your GraphQL queries:

    Error: GraphQL Document Validation failed with 1 errors;
  Error 0: Cannot query field "Titel" on type "STRAPI_IMMO_LEADS_PAGE".
    at GraphQL request:6:11

See our docs page for more info on this error: https://gatsby.dev/graphql-typegen

failed Generating GraphQL and TypeScript types - 0.161s

The result from the stapi api when fetching the same single type:

The type in the GraphiQL explorer:

To Reproduce

Steps to reproduce the behavior:

Create a single type in strapi
Add content to the single type and publish it
Connect gatsby-source-strapi with the strapi instance.
Check out the types in GraphiQL workbench.
The types are there but edges -> node doesn't contain any fields.

Expected behavior

The Strapi types should contain fields.

System Info

Please provide information about your site via these means as possible:

gatsby info:

System:
    OS: macOS 15.0
    CPU: (10) arm64 Apple M1 Pro
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 18.20.3 - /private/var/folders/sg/7qlzh78n07d0n3v6bzh_twch0000gn/T/xfs-aa16fd5b/node
    Yarn: 4.0.2 - /private/var/folders/sg/7qlzh78n07d0n3v6bzh_twch0000gn/T/xfs-aa16fd5b/yarn
    npm: 10.7.0 - ~/.nvm/versions/node/v18.20.3/bin/npm
  Browsers:
    Chrome: 129.0.6668.70
    Safari: 18.0
  npmPackages:
    gatsby: ^5.13.7 => 5.13.7
    gatsby-plugin-emotion: ^8.13.1 => 8.13.1
    gatsby-plugin-google-gtag: ^5.13.1 => 5.13.1
    gatsby-plugin-image: ^3.13.1 => 3.13.1
    gatsby-plugin-manifest: ^5.13.1 => 5.13.1
    gatsby-plugin-mdx: ^5.13.1 => 5.13.1
    gatsby-plugin-schema-snapshot: ^4.13.0 => 4.13.0
    gatsby-plugin-sharp: ^5.13.1 => 5.13.1
    gatsby-plugin-sitemap: ^6.13.1 => 6.13.1
    gatsby-source-filesystem: ^5.13.1 => 5.13.1
    gatsby-source-strapi: ^3.3.3 => 4.0.0
    gatsby-transformer-sharp: ^5.13.1 => 5.13.1
  npmGlobalPackages:
    gatsby: 5.13.7

The update flag in gatsby-plugin-schema-snapshot is set to true.

gatsby-uc / plugins