When I click the "Layouts" button in the top right-hand corner of the application (application toolbar is set to "Top"), I can't scroll through my saved layouts (left pane). I can see about half of them (A through to J) but I can't scroll any lower; there is no scroll bar and scrolling on my mouse won't work. I can scroll through the right pane (layout history) only if I click and drag the scroll bar. Scrolling with my mouse wheel and track pad both don't work on either pane.
This used to work fine for me, but doesn't any longer.