Error found when convert the onnx to engine: Network validation failed

[lmw0320]

My environment is as follows:

I had export the onnx model of yolov7 ,and try to convert the model on the platform of jetpack4.5.1 with deepstream5.1, but got an error as below:

And I checked the split operator had been supported by tensorrt 7.0... I'm not clear why such error caused...
BTW, the same file can be transfered successfully on the following environment:

Hope someone can help me ~~, thanks ind advance!