end_date is a date field. If I remove the date comparison, it works, but with the date comparison, I get an emply collection. If I do it manually in Power BI, I can see about 500 filtered records. Is the comparison more complicated than this?
Just to expand on what @v-yutliu-msft says, the data source that you're using plays an important part.
With SharePoint for example, filtering a date field with the > operator results in a non-delegable query. This means that if your source data contains more than the 2000 records (as defined in the non-delegable query limit in the settings of your app), the Filter function may not return accurate results.
If you let us know what data source you're using, we can advise further.