Issue downloading parquet file from Google Cloud


I used a Google Cloud Notebook to prepare data for a Kaggle Competition.
Importing data from Kaggle worked fine, but now I am unable to download the generated data file from Google Cloud.
The download for a 300MB parquet file stops at 21.3MB without error message.
I am using macOS and tried on a second Mac, which showed the same issue.

Any ideas??

thanks a lot