Transaction not yet indexed

AmBSgqUppCzgPG68nrFB1Tuoa6ad4fLXaWmLN8JFPmDf2zMgSLyrXyb5F8TG2zj5js8Hq4aMxYfhN5QnZJsZXRS

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