Button is visible but not clickable

[Skillkiller]

When the ranna endpoints popup appears it is no longer possible to press the Start button. Only after the popup has closed, the buttons below can be pressed again.

The problem is probably due to a new div block appearing above the navigation bar. Visible in the following screenshot:

Unfortunately it is also not directly possible to use the style tag pointer-events: none; because then it is not possible to move from the icon to the popup without the popup closing when moving the mouse because of the small gap between the navigation bar and the popup.