How do I troubleshoot issues with Django filters?

I'm having trouble with Django filters not returning the expected results. What should I check?

First, ensure that your filter syntax is correct. Are you using the right field names and lookup types?

Yes, I think so. I'm using filter(name__icontains='test'), but it's returning an empty queryset.

Check if there are any records in the database that match your filter criteria. You can also try running the query directly in the database.

I did that, and there are matching records. Could it be a problem with the queryset itself?

Yes, it could be. Make sure that the queryset is not being modified elsewhere in your code before the filter is applied.