import_contract not possible with large contract state

[Tarnadas]

Hey,

I've been trying to use import_contract for a contract where RPC refuses to download the state, because it is too large.
I know that the beta RPC doesn't have this limitation, so I tried enabling unstable feature to set up custom worker:

    let custom_worker = near_workspaces::custom("https://beta.rpc.mainnet.near.org").await?;
    let contract = worker
        .import_contract(&"app.chess-game.near".parse()?, &custom_worker)
        .dest_account_id(contract.id())
        .with_data()
        .transact()
        .await?;
    let states = custom_worker
        .view_state(&"app.chess-game.near".parse()?)
        .await?;

However I get an error for both import_contract or view_state:

Error: Failed to connect to RPC service https://beta.rpc.mainnet.near.org within 10 seconds

Caused by:
    error while parsing method call result: [missing field `version`]

So I am wondering is there any other way to use import_contract with large contract state?

[Tarnadas]

oh also if I use beta RPC via Near CLI I can successfully download contract state