Transaction not yet indexed

21LktVbqH7eqWZYxnmDZTQJGGrd7Hb3RTvufEfPo7uvdCsyYvijZjFNHKj7gMTf4FutEeyYuSvDTSHus24GuXvmL

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