Transaction not yet indexed

AmDH2Q12enSvMPHFrYuDzya35yyzS3z7xEFKky3fkqqq65cKhT5KqQ8gNdmqipxozY3azz8jxMNMFuPxNpAwvx2

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