DBI not returning values consistently

Summary:

Content (required):

Formula type is Compensation Calculation, and we are using the formula to adjust the amount used in coverage/rate calculations of insurance plans.

For the same person during the same life event process, sometimes the DBI are returning values, and sometimes they are defaulted. Please see my code snippet for some of the DBI but it's consistent across all DBI being used in this FF.

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):

    IF(CMP_ASSIGNMENT_SALARY_ANNUAL_FULLTIME_AMOUNT WAS NOT DEFAULTED) THEN