I faced the same problem, but I found another solution without having to modify my batch script.
The only thing that I missed out is at the 'Action' settings - "Start in (Optional)" option.
Go the task properties --> Action tab --> Edit --> Fill up as below:
- Action: Start a program
- Program/script: path to your batch script e.g.
- Add arguments (optional): <if necessary - depending on your script>
- Start in (optional): Put the full path to your batch script location e.g.
C:\Users\beruk\(Do not put quotes around Start In)
Then Click OK
It works for me. Good Luck!