testing code does not work, the results are not correct, mAP values are easy 0.125, medium 0.134, hard 0.156

Both model I trained by this code or your pretrained model doesnot work for the testing code. And I saw your SSH folder in the insightface project. The testing code of that folder detects faces via original image, I do not think, it can achieve 81.4% of mAP for hard set of validation set of WIDER FACE. So could you provide some advice? Thanks