I recently updated my site to Joomla! 3.8 and today installed the patch 4.2 for Vortex as the menu disappeared. After this, some (not all) sites won't be displayed correctly anymore. I cannot see a pattern which explains this behavior.
This is a working site: http://www.top-spot.ch/ambient/lift-ads
This one is a broken site: http://www.top-spot.ch/digital/dynamic-screens
There are no errors in the console.
I tried to reinstall the newest version of the template what didn't work. Joomla! returns an error and asks me if I am trying to install the same component... Yes
Do you have an idea what else to try?
Thank you and kind regards, Stefan