Cannot refresh dataset containing both Google Analytics and ODBC

I prepared a dataset which contains info from multiple sources, ODBC connection and GA. Tried to schedule automatic refresh using gateway and it fails. I took test dataset with 2 sources separately, seems to be working that way, i.e. one dataset with info ONLY from GA can be automatically refreshed and another dataset with info ONLY from Database (connection using ODBC) also can be refreshed. When put together, refresh fails. Can u pls help with that issue Thx