Transaction not yet indexed

255CuUmE212dBGwQTH5tAF5D7hL2g5QD5ChrdLC7FFgiGDR9U2a6X3z1g2tVcWdQBAjBDySwPejdrPFkTzLYtbKV

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