Transaction not yet indexed

5u21dB9XCAoQp3JsA18UXAkrxxB5SucbnDMW5PZKNmR7KdkuxiwrFjJ3jhRsDAJa7e3b4twLdUEMu5aHL2XCmUF6

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