Model cannot be trainned well by the scripts.

[ghost]

Hi, I try to use these scripts on my own datasets. I run the run_'mobilenet_v1.sh' but it cannot load pretrained model. So I train it without pretrained model. But I tried several times and found the saved model (ckpt) always output same result for different inputs. (by runing 'predict_one_pic.py ckpt_folder img') Could anybody solve my problem?