The timestamps on the RSS feed for each post are not unique. This is causing problems importing the RSS feed into things like blogs because the importers use the feed timestamp as a check for new content. If the time stamps are the same they can't differentiate between posts that have already been imported and have not.
This confuses the importer completely for my Tumblr blog and stops the importer working completely.
Just so I'm not looking in the wrong place, can you give me an example / be more specific about which RSS feed you're referencing, please? Just not sure if you're talking about the XML offer feeds, rakeback news feed, or even the forum, etc. Once we have a bit more info we'll take a look and, if it is a bug (which it sounds like it probably is), we'll get it resolved for you.
Sorry for being a bit vague. The problem is being caused by the RSS feed of the global news. The timestamp (pubdate) of items in this feed for items published on the same days have identical dates and times (this has only been an issue recently). The default importer for rss feeds for tumblr requires unique pubdates in order for the importer to work. The Tumblr importer uses the pubdate as a check for new items and when it detects multiple items with the exact date and time it stops working.
For example on the 19th june 3 items have the pubdate of: <pubDate>Sun, 19 Jun 2011 05:00:00 GMT</pubDate>
Ah, okay, I see what you mean - looks like this is a bug / short-sightedness on our end. It's not a super easy fix that I can take care of right away for you but it shouldn't be too bad to get taken care of. I'll look at it a bit closer early this week and will hopefully get a fix out for you. I'll update this thread with more info as I have it.