If a task is updated in Clarity and does not have assignments (fixed duration and fixed units), if you update the task’s % Complete to something greater than 0 and less than 100%, it changes back to 0% in Microsoft Project (MSP) on MSP MSI. It does not happen in MSP Click to Run MSP versions.
STEPS TO REPRODUCE:
Expected Results: Task % Complete is 10% in MSP
Actual Results: Task % Complete is 0% in MSP
This was reviewed as DE54236 and determined to be a Microsoft issue.
This issue is now fixed in the October 2020 Microsoft Update and higher. For more info see: October 6, 2020, update for Project 2016 (KB4484502)
Workaround:
Note: Ensure that Update Task Status Updates Resource Status field in the Tools>Options>Calculate tab is also Unchecked