Transaction not yet indexed

UdU3AyGpJT4n2rzKL13UAi4d7pQfLPx2ACtbKBJ3kmqyBEBRk8fNzxpiACVaDMmdzrAeg86Tx2ac6FpznCjV5X8

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