Hi, @PrivateAnalytic,
According to the error warning, the blank is caused by the relationship, you can delete the relationship to try.
If the above one can't help you get the desired result, Second, what's your summarize formula? And table structure? Can you give us more information?please provide some sample data in your tables (exclude sensitive data) with Text format and your expected result with backend logic and special examples. It is better if you can share a simplified pbix file. You can refer the following link to upload the file to the community. Thank you.
How to upload PBI in Community
Best Regards,
Community Support Team _ Yalan Wu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
