There is no update from you for a period, assuming this is not an issue anymore.
Hence we are closing this topic. If need further support, please open a new one.
Thanks
There are some samples for open source YoloVx models. DeepStream SDK FAQ - Intelligent Video Analytics / DeepStream SDK - NVIDIA Developer Forums
Nvinfer is open source, you can refer to DeepStream SDK FAQ for the nvinfer debugging. You can check whether the input to TRT is correct.
The following FAQ may also provide some method for debugging.
DeepStream SDK FAQ - Intelligent Video Analytics / DeepStream SDK - NVIDIA Developer Forums