Previous Year's Employee Hours Missing

Hello, I've been working on a custom export where I need a list of employees that have worked over 500 hours for 2019. While testing, I run the report in my current year company and everything is great. I go back to my 2019 company file to run the custom export and what I get is random employees with hours such as 4.12487e. I check in Maintain Employees>choose an employee>Totals and all I get is 0 for all hours except for those random employees, which show 4.1e under Regular hours.

How do I fix this?