This installation was a migration from Horizon 14 to Meridian 2017. Everything is working correctly.
On the front page, when typing the name of a KSC report, it shows all the available reports all the time, instead of filtering the list by the content of the input field. This makes me thing that the typeahead controller is not working as expected.
Also it is extremely annoying that the CSS Theme for meridian shows WHITE text over LIGHT GRAY area for ALL the drop-downs (I'll create a separate issue for this).