Clicking the Update Available link on the tool bar will (should) never let you install them - that's only for notifying.
 
However, SM-V should always work. And does for us, if/when it loads. In the last couple/few months (since 2017.1?) about half the time the little box says "Loading...." but it never does.

The update link on the tool bar allows you to view the patches only. If you want to install the patches you need to use SM-V. Only one user really needs to check and install patches so all other users should In EVO go to Settings US-A and under the Misc. tab, make sure the Disable Check for Updates at Login is checked.

The program is called from different places passing different parameters which control what it does.  The IS Tech toolbar on the menu calls it in a view only mode so any user can check to see what patches are available and click the What's New link to see exactly what they address.  SM-V on the menu calls it in active mode so by restricting who has access to SM-V you can control who actually has the ability to download them.  Downloading at SM-V by any user updates all users.