The feed often only displays one item even if I haven't checked it for days

While other feeds show me the last X number of items.

Does anyone else experience this? Is it only because I subscribe to it in my browser? Obviously it works fine in google reader and / or my phone (but I rarely read blogs on them and it's a different type of setup). It makes it very easy to miss recent posts in this context.
Thanks for listening! (back to work)