Wikipedia talk:Disambiguation pages with links/July 2018

I took a shot at fixing a DAB error for Constructivism, and went to the "What links here" page for that DAB page, and saw this. [] The fourth item and the only one I can see in article space is Qualitative research, but I can't find a link from that article to Constructivism. There is a piped link for Constructivism but which actually goes to Constructivist epistemology. Is this possibly a bug in the What Links here feature? TimTempleton (talk) (cont)  22:57, 28 July 2018 (UTC)
 * Never mind - I found the problem - it was itself piped so didn't show up in a search of the article. TimTempleton (talk) (cont)  22:59, 28 July 2018 (UTC)