Transaction not yet indexed

556YY42B7ko4CBhkDPkNw5bAZwq8d9JHK2UeFwPPjVafio4TcAHbPr8mCkbEtiF69wjSGpxoBuyw3Bpkw4RKX2Uz

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