Transaction not yet indexed

3921XcdVpF6T7sqJw1eMxZEoaZ8TjtyuN1719KzZGLp19FZTgRPkatkTJoFXSTDaRcYVyoQwgq7xCQHCp4zbTrPU

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