@alfarzan, thank you!
Your suggestions actually solved the problem with “Error in load_model() […]”, but unfortunately my submission still ends up with the error message “Inference failed errors”.
In the log there is a detailed error description and there is still a reference to LoadModel function. Thus I presume that the issue is quite similar to that you described above, isn’t it?
Do you have any other ideas? My latest submission is 114872. Thanks in advance!