Transaction not yet indexed

AB1B99pAcyLbzz7v9VkvqsMRd7jFTBUPbwDbSXqqmXmwX1Qn7do8o7rYQu9R4YY7Eazd1y8j7Sx6oV3JLzUrLd1

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