DD is set to 12/7/2020
Create a task and assign a resource to the task.
Resource is set to Driving. Duration will change if the planned units/ time is changed.
Planned units will change if Duration is changed.
Set DD to 12/8/2020. Set Progress to be Units dependent.
Set Task status to started and actual start on 12/7/2020.
Actual units is not populated and shows zero.
Task Progress shows 0%.
Then keyed in Actual units as 8, resource Count under actual automatically changes to 1.
However the Remaining utilization has the Resource count automatically changed to 0.75 and Planned units/ Time is also updated in fractions, Task progress is updated to 25%.
I must manually set R count to 1 under Remaining Units. Then the Task % completely will be changed to 20%.
It seems that Resource count is not preserved as 1 and it seems that some additional calculation is going on.
sp file I used is attached.
This fix is available in 6.4 released in June 2021
Full 6.4 release notes are here