This is more of a plugin question. But I suppose there might be a theme-plugin conflict, since Corpo also uses Flexslider for home page slider. Does the plugin work when you switch themes?
alex27,
Yes, the plugin does work properly when switching themes.
Quite odd behavior. Now that I switched back to the Corpo theme after testing it with other themes: Flexslider is correctly using the defined slide delay timing, and correctly hiding the navigation dots as I selected. However, it still will not show the arrows.