User blog comment:Rappy 4187/Technical Update: May 30, 2016/@comment-1251315-20160601195148

It seems like the misalignment of the global navbar happens only when an anchor name is specified in the URL on page load (eg #WikiaArticleComments, #comm-IDHERE, #POSTIDHERE). If I remove the anchor link from the URL and reload, the bar is placed like it should be.