Payroll elements attaching to Inactive - No Payroll assignment

Summary:

We have employees who are still active, but have an 'old' assignment that was ended, and the status is Inactive - No Payroll. For some reason, our payroll elements started attaching to the Inactive - No Payroll assignments, instead of the active ones, and we are lost as to why. Any input would be greatly appreciated!

Content (required):

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

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