Hi @灿 程 Greetings! Welcome to Microsoft Q&A forum. Thank you for posting this question here.
Based on the information you have shared; it sounds like a compatibility issue with Unreal Engine 5.2 version. There are no changes in Azure Kinect Body tracking SDK in recent times. I appreciate it if you can also post this question on Unreal Engine Forum and see if the community experts can share additional insights on this.
If the response helped, please do click Accept Answer and Yes for the answer provided. Doing so would help other community members with similar issue identify the solution. I highly appreciate your contribution to the community.