A few days ago I installed the new version of WordPress on two domains. Both directories reside on the same server. Both are using the same template. Both are the same version of WP. They have the same plugins activated. And that is what makes this so weird:
One of them is missing a couple of widgets. The missing widgets are: “Feed Buttons” and “XSPF Player”. They are present in one of the blogs widget pane under “presentation” for the theme. Thy are not present on the other, however, all the other widgets are.