Transaction not yet indexed

Nkb21Gy4D72AnbZB75Ni1RjpKLMVLZsRutENp3ev2BLpsdy2zuiYWCdd6NR5mbBAprs2soiEuaPEvkzj6w4kVAc

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