I use the latest drivers and browser (chrome). But I think I may have found what is causing this. I disabled "On Start of Layout > Set WebFont" which sets the font for 2 text objects (small load says google, font is Press Start 2P). I uploaded the version with disabled webfont on loading layout here:
Is this a bug which can be fixed somehow or is there any workaround?
PS: In Firefox the loading layout works fine but the following page is black (every page has the SetWebFont on StartofLayout). But the version without the webfont on the loading layout works fine.