Transaction not yet indexed

521Uyofng3k5fvtt8TEjdvTA8sGo5Ch6oofnoCu8VBW8hKj6vrLGgRZZWLLepLnWFyrXfU5BvfMXCBFrC22MJYBY

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.