I completely understand you. However, I have tested the behaviour of the "Schedule publication updates interval" functionality and it appears to be functioning as expected. However, I want to explain a bit more about the feature. For example if you select 5 minutes from the drop down menu of "Schedule publication updates interval" and you add a url of a web site, 5 minutes after someone updates the website you want to get the feed from, you will receive these update on your site content.
If you still encounter problems with the publishing system, I would suggest to open a support ticket in which we can discuss any possible issues that you might be encountering.
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