Hi @Anonymous ,
I think your problem is still the setting of schedule.
Why your next sync is "2020 year ago"?
Next sync means that the text time that the data integration performs.
I made a similar test , my schedule is set like this:

After I save the schedule, you could check the schedule here:

The next sync should be "in an hour".
And I will receive the email per hour.
You could run the product by clicking "run project".
If the project has ran successfully, then your setting about this project has no problem.

You could also check whether your project running history here:

Best regards,