Transaction not yet indexed

21mFpNaJMjjCEGW16N2p8pZYtv7q3cnwQZdcYmhwECLUCa6WDXc7G87sB9NPMWFShQzHY7GpASoNiXjhDd5MdoF5

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