NOTE 1: Update as FYI for others as well: Feedbro 4.2.2 fires "When new article arrives" rules for also updated articles. This means that when the feed author updates an article, you'll get a desktop notification if you have a matching rule.

We'll change this in 4.2.5 (currently in review queue) so that feed article update does NOT fire desktop notification, IFTTT, play sound actions and does NOT mark the updated article as unread.

NOTE 2: To everyone wondering why they got some duplicate entries in some of their Atom feeds: it can happen just once per feed and is related to an internal change (we added GUID checking and the old existing entries in your local database didn't have GUID values because those weren't supported before). Long story short: even if you might get some duplicates after updating due to this, you won't get them in the future for those feeds since the GUID checking will prevent that.

Can you send the feed URL that is causing this to feedbro.reader@gmail.com please?

EDIT: Ok, got it! Added this idea to the Product Backlog!

You can right-click the feed in the feed tree and select "Mark All Items as Read". Also the green checkmark icon will mark either the feed or the entire folder read when you click it.

Feedbro doesn't really skip any articles but that feed looks like a relatively "high frequency" feed which has lots of entries during the day. For example if at night your computer is off, Feedbro can't scan the feed so if the XML provides only latest 20 entries and during the time off more than 20 new entries are posted, there's a chance to "not see" some articles. You can fix this by selecting "Feedly" to the "Proxy" setting when adding the feed. This will load the feed using Feedly as a proxy that stores all entries 24/7.