Gateway "System.OutOfMemoryException: Array dimensions exceeded supported range" Error

It turns out this was a case of bad Power Query logic. I removed:

UnpackedStream = Lines.FromBinary( WebResult ) {0},

 So that my Power Query logic is:

DataRequestHeaders = ( _accessToken as text ) as record =>
		[
			#"Authorization" = "Bearer " & _accessToken,
			#"Content-Type" = "application/json; charset=utf-8"
		],
DataRequestParameters = [
			RelativePath = "customers",
			Headers = DataRequestHeaders( AccessToken ),
			Timeout = #duration(0,1,0,0),
			ExcludedFromCacheKey={"Authorization"},
			ManualStatusHandling = { 500 },
            IsRetry = true
		],
WebResult = Web.Contents( "https://myUrl/", DataRequestParameters ),
DataRequestResult = Json.Document(WebResult),
RecordTable = Table.FromList(DataRequestResult, Splitter.SplitByNothing(), null, null, ExtraValues.Error),
ResultTable = Table.ExpandRecordColumn( RecordTable, "Column1",{ "ID","Customer" /* 20 additional columns */ }) 

 And I am no longer encountering any issues. Thanks,