error happened when "self.encoder_session.build(do_quantization=False, dataset=DATASET)"

[a554142589]

W build: Adjust scale of bias 'onnx::Conv_2648'!
W build: Adjust scale of bias 'onnx::Conv_2654'!
W build: Adjust scale of bias 'onnx::Conv_2657'!
W build: Adjust scale of bias 'onnx::Conv_2660'!
W build: Adjust scale of bias 'onnx::Conv_2663'!
W build: Adjust scale of bias 'onnx::Conv_2666'!
E build: Traceback (most recent call last):
File "rknn/api/rknn_log.py", line 309, in rknn.api.rknn_log.error_catch_decorator.error_catch_wrapper
File "rknn/api/rknn_base.py", line 1937, in rknn.api.rknn_base.RKNNBase.build
File "rknn/api/quant_utils.py", line 604, in rknn.api.quant_utils.compute_param
File "rknn/api/quant_utils.py", line 361, in rknn.api.quant_utils.cal_bias
File "rknn/api/quant_utils.py", line 262, in rknn.api.quant_utils.cal_bias._set_b_scale
IndexError: list index out of range