Transaction not yet indexed

21ACK3nnTY7cHgBNwH7gRpMPEUFPyvBR8va1DJZDND2tSjpdoUnSb6RcPZgXEXefEXcZzoF6LFppebNFYymS4BMH

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