Thank you very much for your suggestion. I had not seen this comment in the grey box before. However, my task has 1 in " Days to Keep" and 1 in "Reports to Keep". With these values, this report should be available only one day in the hub, shouldn't be? the thing is the reports are in the HUB for various days after the task was executed.
Please don't hesitate to tell me if you have another idea or suggestion.