Transaction not yet indexed

121UMhsBxxmK7AJvfbRdvUjxcMaJLCZdiZebPT1pp62euiGeaUbkdEmcYagdUP4mcUHgbsSV2btrD5MWhbEo1ECs

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