Timeout Issue Online - Redshift

Hi there,

My dataset is refreshing correctly in Power BI desktop but when I publish it, it fails the scheduled refresh (credentials are working and this is a new issue).

Error code 1: 

{"error":{"code":"ModelRefresh_ShortMessage_ProcessingError","pbi.error":{"code":"ModelRefresh_ShortMessage_ProcessingError","parameters":{},"details":[{"code":"Message","detail":{"type":1,"value":"ODBC: ERROR [08S01] [Microsoft][Amazon Redshift] (30) Error occurred while trying to execute a query: [SQLState 08S01] server closed the connection unexpectedly\n\tThis probably means the server terminated abnormally\n\tbefore or while processing the request.\n"}}],"exceptionCulprit":1}}} Table: my_view.

Error code 2:

{"error":{"code":"ModelRefresh_ShortMessage_ProcessingError","pbi.error":{"code":"ModelRefresh_ShortMessage_ProcessingError","parameters":{},"details":[{"code":"Message","detail":{"type":1,"value":"Timeout expired. The timeout period elapsed prior to completion of the operation."}}],"exceptionCulprit":1}}} Table: my_view.

I have tried to increase the timeout limit of the query by editing the M code to add a 

[CommandTimeout=#duration(0, 1, 0, 0)]

to my M code:

let
Source = AmazonRedshift.Database("my_server", "my_db", [BatchSize = null]),

but got the following 2 errors:

1. Too many arguments, 2-3 arguments expected (I added the CommandTimeout to the end)

2. BatchSize must be specified (I tried changing BatchSize argument to CommandTimeout argument)

So how do I increase my timeout? Or do I even need to do this at all - am I barking up the wrong tree?

Thanks!