yolov5m-face training mAP is 0

[tiedan9999]

同样的参数配置，在yolov5s-face上训练结果和作者一样，但在yolov5m-face上训练就一点效果没有？如果换成yolov5m-face的话，需要额外修改什么配置或者参数么？
With the same parameter configuration, the training results on yolov5s-face are the same as the author's, but the training results on yolov5m-face are not effective at all. Are there any additional configurations or parameters that need to be changed if switching to yolov5m-face?