Transaction not yet indexed

5521cGKumRtbSfZJ24Mgr2wgwZMqPCgkQKE1EKa41GCEQ4CZjBKQccjNJPWN8c4LLMFvPPUijBw4ajYGKBKXurVA

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