Not fetching enough items

It seems perhaps the site that retrieves fewer items may have already imported feed items from the feed, some of which were then deleted. To confirm this, please clear the debug log at RSS Aggregator > Tools > Logs, re-import the feed and have a look at the log again.

If you see the message ‘already exists in database’ logged repeatedly, this means some items were skipped from being imported because they are already on your site, including the Trash section. This measure prevents your site from being flooded with duplicate content.

Please let us know if this helps.