Feeds have post but they don’t show

For some feeds there are recent posts showing when you look at Feed Sources > Edit > Feed Preview.

For instance, this feed has several over the last few days:
http://jcvintankar.blogspot.com/feeds/posts/default

However, these recent posts do not show where they should:
– on the front page where they should appear
– Feed Sources > View Items
– Feed items

But they are, as I mentioned, visible in Feed Sources > Edit > Feed Preview.

There are several examples of feeds like this. However, some other feeds work as they should.

The “update interval” for this example is set to “default”, which is 1 hour (I assume that is what you in Settings call “Feed processing interval” instead of Update Interval).

I have tried Debugging > Update All Feeds but it did not help.

I would much appreciate if you can help me with this.

The page I need help with: [log in to see the link]