Broken Context Menu on MacOS Sierra

Hey,

I’ve got a problem under MacOS Sierra.

Under certain conditions (and unfortunately, I cannot say what exactly triggers it, but it happens often), the context menu doesn’t work anymore.

I can open it with a right-click on an element in the browser pane on the left side, I can even open sub-menus by pointing at them, but when I want to click on a menu item, nothing happens, the menu simply stays open (as if I hadn’t clicked at all).

It is still possible to trigger the actions from the menu bar, but the context menu is (and stays) unusable until I restart the application.

Is this a known problem?

Bernhard