Transaction not yet indexed

21So5CHUCLB5gSYUxF8a1VfMSTPFMCF2QtCuzA4tMteTYKudF6hs2KjZ6weoVcn98CSJr8KP6CpB4JAKHDKTJNW1

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