Yolov5s model in deepstream-imagedata-multistream

In deepStream-imagedata-multistream, I use his original example, which is running properly and saved in the Frames directory. Then I changed the dstest_imagedata_config.txt file to replace the configuration with my Yolov model, and my model was converted by the following steps :pt – WTS – engine.
I then executed the following command: sudo LD_PRELOAD=./libmyplugins.so python3 deepStream_imagedata-multistream.py < file://> Frames. Although the program runs successfully, there is no file saved in the frames directory, and there is no warning in the program. What is the reason? How can I solve it?

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU)
• DeepStream Version
• JetPack Version (valid for Jetson only)
• TensorRT Version
• NVIDIA GPU Driver Version (valid for GPU only)
• Issue Type( questions, new requirements, bugs)
• How to reproduce the issue ? (This is for bugs. Including which sample app is using, the configuration files content, the command line used and other details for reproducing)
• Requirement details( This is for new requirement. Including the module name-for which plugin or for which sample application, the function description)