When triggered build has removed history build, Build Graph plugin shows empty page.
job1 #10 -> job2 #20 .... when job1 #20 is removed, build graph on job1 #10 is empty
In Javascript console is error:

prototype.js:5798      Uncaught TypeError: element.dispatchEvent is not a function
breadcrumbs.js:159     Uncaught TypeError: e.hasClassName is not a function