Transaction not yet indexed

21MecJ676CbPNmqGtzPdf5ZX7jZ4hdTHxwFsotQDSneeLvPfkYDuhReTGXZJr3PEUUmZxZpocpj3vmAr2sUTPEB6

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