Transaction not yet indexed

5U21PSTv2HB5ioisHq3Uh5tt2j8ULKhyA2NE2BsQ5ByFzGzWHMkAeBdcTSXZe5s2yHRuQa3SY7UFTASStiWt4PLK

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