For me, a *ton* of applets go missing on upgrade to 15.04.0+17.04.20170314-0ubuntu1 ... Downgrading to 15.04.0+17.04.20170213-0ubuntu1 brings them back.
For me, a *ton* of applets go missing on upgrade to 15.04.0+ 17.04.20170314- 0ubuntu1 ... Downgrading to 15.04.0+ 17.04.20170213- 0ubuntu1 brings them back.