After uploading course to Saba, 0 does not display in results response

While taking an assessment, a response is created as a variable to be displayed at the end of the quiz in a text box using the change contents action. The quiz is not created with test items - it is created in a chapter using the radio group and radio buttons as form items.

When the course is previewed in Lectora Online it works fine and displays

You got 0 out of 4 correct

However after being published to Saba, it displays

You got out of 4 correct.

If they get 1, 2, 3 or 4 correct, that number does display as part of the response - only the 0 does not display in Saba.

Has anyone seen this before? Any suggestions?

thanks!

Jeanette