In version 3.3.9.4 the Link Color field does not generate pseudo-classes a:visited in the right place. The issue comes when I set parameters regular = true, hover = true, active = true, and visited = true.
The a:visited property is generated in the 4th position and so causes an issue in CSS, a:visited replaces the value for a:hover. In pure CSS the right order should be a:link, a:visited, a:hover, a:active.