What is the meaning of the index in the redeemer ?
redeemer = [ tag: redeemer_tag, index: uint, data: plutus_data, ex_units: ex_units
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I think in Serialization version 9 it used to be the index of the inputs. There was even a method for getting the index of the input in the class Transaction Builder. But now in 10.4 this method is not longer available and in fact for the experiments i have done so far the index of the redeemer needed for the transaction to be validated by the node seems not to be the same as the index of the input in the transaction, so I have not a method for computing the index that i should attach to the redeemer.