SSIS Execute SQL Task Stored Procedure returning empty result sets

I have a simple stored procedure that returns 1 row with 3 columns. I am trying to create an SSIS package that reuses the values in these columns later. If I run a simple select query everything is happy but when I run the stored procedure I get the following error:

[Execute SQL Task] Error: Executing the query "rs_UpdateMemberExtract" failed with the following error: "Unable to populate result columns for single row result type. The query returned an empty result set.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.

I've set up an ado.net connection and the proc runs correctly in SSMS, I have the task set up like follows:

ConnectionType: ADO.NET Connection: ServerName.connectionName SQLSourceType: Direct Input SQLstatment: Name of Proc (rs_UpdateMemberExtract) IsQueryStoredProcedure: True

I have each parameter mapped to a variable and the direction set to Output

I have the name of each column that should be returned in the result set and mapped to the associated variable.

The task works if I set the ResultSet to 'None',

Any ideas What I've missed?

Thanks