Work and Cost not getting distributed for certain periods

Hi Everyone,

We are facing an issue where the work and its corresponding cost's are not getting distributed for certain periods.

For example, A planned work of 100 hours has been logged for a particular activity.

In certain cases the costs and work were distributed according to the distribution key maintained in it.But in certain cases it is not getting distributed as expected.

The factors influencing the distribution are Earliest dates, discrete points and Factory calendar. The screen shot has been attached for your reference.

Please advise on the issue.