Listview inside Horizontal Arrangement does not work

See this example, noting the height of the listviews - which must ALWAYS be "higher" than the containing vertical scroll arrangement

multiLV.aia (1.2 KB)

Also see here for automatic height expansion

https://ai2.metricrat.co.uk/scraps/automatically-expand-listview-height-in-scrolling-arrangement.

You could just use one Listview and a YAML layout approach