Course passing 100% score with Incomplete status

Storyline 2 update 11: 1609.3020

Course is published using quiz results and reporting status as 'Passed/Incomplete'.

I've checked all my setting in Storyline and can't see why its not reporting 'Passed' status.

I'm using SCORM 2004, 4th edition

I've uploaded course to SCORM cloud, and after successfully completing the course the sandbox is showing completion as 'Incomplete' Success 'unknown' and Score 100%.

Anyone had this before and know how to fix it.