MU wordpress feed

I can show feeds from other blogs on my site, for instance:

Blog A will show on blog B’s RSS widget (same site)
And Blog B will show on blog A’s RSS widget (same site)

However, blog A’s RSS feed will not show on its own RSS widget, same for B with B — or at most they will only show 1 post.

The RSS feed is set to show 10 in both settings and under the RSS widget

Has anyone else come across this problem? And did you solve it, how?

Thanks