Transaction not yet indexed

i88b1C3C8SSpmDKXuvt9mcYPWa1vZzeYY6ZmCTqBViPtxiEpfCBQJsQNgaR2D5BGknDhBSBFLEiV8mQLzcvcXe1

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