Transaction not yet indexed

21C6bta4NSp5RJBEC1orgm761CphbgDkkrobcWqbYTV6bK5vrVsf8tGPNu9jK6AfK3dSTTQqCExfp5vMc2FR5qHF

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