Hi Alan_ ,
Can you provide details of the reproduction steps and the version of Power BI you are currently using? I am not able to reproduce your issue, this information will help us to determine if it is a bug and if so, we will submit an internal icm to fix it as soon as possible.
Based on the above information, if you are a Power BI Pro licensee, you can create a support ticket for free and a dedicated Microsoft engineer will come to solve the problem for you.
It would be great if you continue to share in this issue to help others with similar problems after you know the root cause or solution.
The link of Power BI Support: Support | Microsoft Power BI
For how to create a support ticket, please refer to How to create a support ticket in Power BI - Microsoft Power BI Community
Best Regards,
Community Support Team _ Caitlyn