Transaction not yet indexed

AmXdtrn22NSmq8kvv1j3NRnAxTzAbroS8ihFfeU1Lg1fNaDqfR4WwSsQ6TxT1vaWZZeJ4iBnXVCUxD4v53NCEo4

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