From mboxrd@z Thu Jan  1 00:00:00 1970
From: Suvayu Ali <fatkasuvayu+linux@gmail.com>
Subject: Re: beamer_env tag issue with empty headlines
Date: Tue, 18 Aug 2015 14:43:39 +0200
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On Mon, Aug 17, 2015 at 11:11:59PM -0400, Prateek Mehta wrote:
> 
> I have a beamer block setup like below, so that it does not have a headline.
> 
> 
> **      :B_block:BMCOL:
>    :PROPERTIES:
>    :BEAMER_col: 0.64
>    :BEAMER_env: block
>    :END:
> 
> - Some text here
> 
> When I export it, the beamer environment tags show up in the pdf. This was
> not the case a couple of months ago, when the tags didn't appear in the
> pdf.
> 
> If the the headline is not empty, the tags do not show in the pdf and it
> works as it used to.

I can confirm this behaviour.  I do not know if this is a regression,
but it is inconsistent for sure.  That said, you can hack around this by
using \phantom{dummy}.

Hope this helps,

-- 
Suvayu

Open source is the future. It sets us free.