Hey @susantini , thanks for reporting the issue.
I'd suggest you try out an example from here. You should be able to run it with:
python3 main_api.py -m <model_name> --config <config_json>
where model is the blob file and config the JSON file you get from tools.luxonis.com. If that still produces the same results, please share the .pt weights and an example input image, and we will further look into it.