Hi,

I encountered a strange problem today, exporting to beamer didn't
produce any pages eventhough it compiled just fine!  It turns out it's
how Org exported the labels.  They should be wrapped in {..}.  See this
TeX.SX question for more: http://tex.stackexchange.com/q/250640/4416

The attached patch should fix the issue.

Cheers,

-- 
Suvayu

Open source is the future. It sets us free.