Transaction not yet indexed

UnJkkLWRhETtqRfh6fbRPLhtwM2wvaHPmRHMVJTDtJETXVBevefsq5zSdRbeRau9oS1Q2cB1juFWy8ZnhPzVCi6

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