Transaction not yet indexed

21UsMFKMod8fH5atUx2TLmu61AMVEBKsTo2gg7zgGuoNdV9LTMtJDRUMgZ14wnRRLfVDFV9CQDQoXKE6ACdLnRMk

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