Transaction not yet indexed

2u19SdMp4yH8nPV1URCk8ai8vwLb3e6ATYu3ggiS1oLf31R7HCkX7JWTKwjdhZESkkuD6EpA8CPTd5dcHuAgzZt7

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