EAS CLI fails to use local credentials in multi-target project

I am currently trying to create a developmental build using the EAS CLI using local credentials, and in my credentials.json file I have two targets for iOS. Every time I run eas build --profile development --platform ios I encounter this issue:

✔ Linked to project @MY_PROECT/APP (APP_URL)
✔ Using local iOS credentials (credentials.json)
    Error: Credentials are not defined in credentials.json

I also tried running the command with my credentials.json only containing ios.provisioningProfilePath and ios.distributionCertificate (one target) and the command successfully runs and queues my build.

I have followed the documentation about setting multi-target projects in the credentials.json file but I still encounter this issue.

For more context, I am trying to pull in the OneSignal library and I am following the steps listed in this GitHub discussion so that EAS can properly build my project.

Project Info:

  • Workflow: Managed
  • EAS CLI: eas-cli/0.47.0
  • Expo SDK: 44

credentials.json:

{
  "ios": {
    "MY_PROJECT": {
      "provisioningProfilePath": "ios/certs/DEFAULT_ADHOC_PROVISION.mobileprovision",
      "distributionCertificate": {
        "path": "ios/certs/MY_CERT.p12",
        "password": "CERT_PASS"
      }
    },
    "OneSignalNotificationServiceExtension": {
      "provisioningProfilePath": "ios/certs/ONESIGNAL_ADHOC_PROVISION.mobileprovision",
      "distributionCertificate": {
        "path": "ios/certs/MY_CERT.p12",
        "password": "CERT_PASS"
      }
    }
  }
}

eas.json:

{
  "build": {
    ...,
    "development": {
      "developmentClient": true,
      "distribution": "internal",
      "ios": {
        "credentialsSource": "local"
      }
    },
    ...
  },
  "cli": {
    "version": ">= 0.40.0"
  }
}

Hello,
Could you please share me this details.
What’s the exact command that you ran?
What version of fastlane do you have?