Error using contract::estimate_gas() on mainnet

[harry-anderson]

Hi there,

I am trying to estimate the gas of transferring an ERC20 token using the contract method:

        let res = contract
            .estimate_gas(
                "transfer",
                params,
                public_key,
                Options::default(),
            )
            .await;

        println!("{:?}", res);

testing on ropsten via infura

Ok(21596)

testing on mainnet via infura

Err(Api(Rpc(Error { code: ServerError(-32000), message: "invalid opcode: INVALID", data: None })))

only changing the chain between tests. Any ideas what is causing this?

Thanks in advance!