Thank you for your post!
Some of the earlier ORION chapters did not have enough attempts to meet the minimum threshold defined by your instructor. The score you receive is determined by your proficiency and a scale. Open your WileyPLUS Gradebook and click on the ORION chapters to see the scale weight.
Additionally, WileyPLUS only counts the proficiency you received during the assignment's availability dates. Any questions answered prior to the assignment's start date, or after the due date, will not apply to the WileyPLUS grade.
I hope this helps! Please let me know if you have any questions. Have a great weekend!