Google native id_token OIDC → Cloudflare 502 on Ory Network

[cadeL3000]

We're hitting consistent 502 Bad Gateway (origin_bad_gateway via Cloudflare) when submitting a real Google id_token through Ory's native login/registration API. Email OTP on the same project works fine. Is there anyone can pinpoint the cause of it ?

What works

Email OTP login (code method) — full session + token exchange
Native flow creation (/self-service/login/api, /registration/api)
Invalid id_token → proper 403 from Ory (Could not verify id_token)

What fails

Valid Google id_token → 502 on login and registration
Reproduced across multiple Google accounts and data mappings (including minimal email-only Jsonnet)

Packages

Layer	Package
iOS Google Sign-In	@react-native-google-signin/google-signin
Ory (Core)	@ory/client (FrontendApi)
App framework	Expo / React Native 0.81