Transaction not yet indexed

21b6BF4ZF9arNLcU7R2TEpW8PheTFZ57mozj6RBSGfxeY2Yz4eCj128PpaMc5po1D1BJaoVp7LPd45qpYRf2gSU2

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