Transaction not yet indexed

21SGHfghTtjapfE6b9nFpy3c67HqDjCvVqaGpqrEXpnx5MCvgoQhL3HRGb1p6gPur23EX3hNaPSVAVDSphTVgf5n

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