Transaction not yet indexed

528u2RF3Ei8SFcRpWmFJY2TrLmDvvztofwrUn8GD4aRwSNUJ7VEMkvUiRubDCCXgts4EbFNMhH23LzRQnxnC1Un2

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