If I configure a split button to have 2 items and navigate to a page through clicking on the buttons down-arrow and selecting one of these, the popup stays on top of the navigated-to-page.
Even worse, the popup even stays when I navigate to another page through the main-menu.
I can even navigate back to the button and open the menu another time, which than gets rendered on top of the previous one.
Unfortunately this seems to be a problem with the PrimeNG SplitButton that Radzen uses. It doesn't close after navigation for some reason. We will look into this.