Hi @davistm, thanks for the info. The problem seems to be occuring due to the visited state on the Navlink-7 class.
I made a quick video:
https://cl.ly/2o2l0R2D3c3b/Screen%20Recording%202018-06-12%20at%2010.02%20AM.mov
I hope this helps
p.s. remember to delete the link you created on the page to change the style 