Drop down popup not opened
Click to selected region

Use this Codepen to demonstrate your issue. http://codepen.io/anon/pen/zZjXVQ
You need to initialize it as shown in the documentation
Fixed. Try again. Does not work
I have the same issue. Dropdown doesn't pop up if there is no text in the element that activates dropdown. Here is the commit that introduced this isssue and some notes about possible problem.
@gewisser You can just remove <span> in your example. In my case it doesn't work since I have only icon without text.
Fixed in 42051a5
I'm using the stable release (0.98.1) and have noticed the same thing. It works when the hover option is enabled, but otherwise it's iffy (worked once on mobile, but not later). I think something's funky with the click handler
Yeah it seems all navbar dropdowns are not functioning on click. I haven't checked the hoverable setting. Including on the Materialize website, the navbar example dropdown doesn't even work.
In dev tools it seems that the open status runs, but then is immediately closed again.
@acburst this is still an issue? It will be fixed in the next release?
Most helpful comment
I'm using the stable release (0.98.1) and have noticed the same thing. It works when the hover option is enabled, but otherwise it's iffy (worked once on mobile, but not later). I think something's funky with the click handler