English：
I made a very simple face model and imported it into metahuman for marking.
After the marking was done, I clicked on “Identity Solve”, but a dialog box popped up: “Failed to solve identity: please check the depth map data is complete and the Identity marker curves are correct”.
After I adjusted the curves a little bit, another dialog box popped up: “Failed to generate brow location information for the neutral frame marked as frontal”.
I don’t know what the problem is, if anyone knows, please let me know, thanks!
中文原文：
我制作了一个非常简单的人脸模型，并将其导入 metahuman 进行标记。
标记完成后，我点击了 “Identity Solve”，但弹出了一个对话框： “Failed to solve identity: please check the depth map data is complete and the Identity marker curves are correct”。
我稍微调整了一下曲线后，又弹出了另一个对话框： “Failed to generate brow location information for the neutral frame marked as frontal”。
我不知道问题出在哪里，如果有人知道，请告诉我，谢谢！