Transaction not yet indexed

Ac1xLUYKAa87n9eDEG3cyWSw33pPso2bdjoUboB3nUQU9B72VaumJs16VyGqD3KbwYaiLRcEFYE3w3ocEaEcGQ8

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