我的app不是VOIP应用，使用iPad10或者iPad13.18等支持人物居中的设备，系统是iOS18.0，18.1或者18.1.1，进入直播课中，控制中心不显示"人物居中"按钮，必现的，如下图。但是项目中Background Modes勾选Voice over IP，再次运行app，就不会再复现，即便是卸载重装也不会再复现。麻烦帮忙看看什么原因？谢谢
cjj123
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My app is not a VOIP application. I use devices that support character centering, such as iPad 10 or iPad 13.18. The system is iOS 18.0, 18.1, or 18.1.1. When entering live classes, the "Character Centering" button does not appear in the control center, as shown in the following picture. However, if Voice over IP is selected for Background Modes in the project and the app is run again, it will not be reproduced, even if it is uninstalled or reinstalled. Could you please help me investigate the reason? thank you!