Transaction not yet indexed

21f43CdXb1Mu5AY26sdAfXexV8hjJk7XF7TyXVaJMRjBfYoP6cRXDkCs6MyezPKLSjdRvEXRY8Kc1vp7b4NCNYu6

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