When selecting "Aircraft" from the menu bar you get to the Aircraft summary page.
On the right hand side (on large screen) there are a few boxes that may show up, one of which (at the top when relevant) is a list of Aircraft with leases that are near expiration. If there are several up for expiration the list does not sort by date, with the nearest at the top. That can be a problem if the most recent happens to fall under the "hidden" group. You would have to open the hidden ones each time just to make sure you are working with the ones most at risk.
The C&D checks box does sort by date with the nearest at the top.
This does not happen often, but it is a problem, especially for a noob who might assume (at first) it works like the C&D check box.