Mobile layout not working on 16:10 android tablet

Hi all,

I have a google pixel tablet, 11", 16:10 display and the mobile landscape is not working properly in landscape mode.

Basically all the menu items do not open the drop down list, but they just immediately direct to the "aircraft/route/office overview" pages.

Only way I can access submenu's is by long pressing the menu, though that is a bit tricky as it opens the context menu (copy/paste/etc.)

Portrait mode works like a charm, but since my tablet stand is in landscape this is a bit of a nuissance...