ONNX--> RKNN conversion issue only for int8 and not for fp16

[kuby-dl]

I get this following log file error while I try to convert FP32 onnx file to Int8 RKNN file. I do not get any errors when I try FP32 onnx to FP16 RKNN file. What is possibly wrong with this conversion? Basically Dimension mismatch error only for int8 rknn conversion!?
log_feedback_to_the_rknn_toolkit_dev_team.log