Thank you for posting your question in the Microsoft Q&A forum.
Although this forum primarily focuses on Microsoft 365 and Office built‑in features, your scenario involves Power Automate flow design and multi‑select People/Group field handling. These topics are best supported by the Power Automate Community, where product experts can review your flow details and help troubleshoot the array/claims formatting error you are seeing.
To ensure you receive accurate and effective assistance, I sincerely recommend posting your query in the Microsoft Power Platform Community. You can do so by clicking on Post a question in that forum. Members and engineers there specialize in Power Automate and can provide detailed guidance on resolving this error.
Additionally, as other users have raised similar concerns and may not be aware of where to share their feedback, I hope this response helps clarify the situation and suggests a potential next step. Highlighting this information can make it more visible to others in the community who may be facing the same issue, making it easier for them to find guidance and contribute their feedback as well.
Thank you again for your time and for raising this important usability concern. If you have any further questions or need additional assistance, please don’t hesitate to reach out.
I look forward to your thoughts on this.
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