Upgraded to 7.2.2 and on two out of 4 sites, when I edit a page there are no Settings or Edit buttons on any of the modules.
On one site I'm using the DarkKnight skin. If I switch to the copy of the skin under 'Host', the buttons come back. However the skin is the same for both Host and Site, so not sure why it would be different.
On the other site we're using a third party skin and this has only ever been installed at the Site level.