I figured this out. It was rainbow delimiters mode. Specifically
calling (global-rainbow-delimiters-mode) causes the issue.

Thanks for your help.

On Wed, Feb 24, 2016 at 5:40 PM, Nicolas Goaziou <mail@nicolasgoaziou.fr>
wrote:

> Roman Milner <roman.milner@gmail.com> writes:
>
> > Can you tell me what version of org you are on? I'm on 8.3.3.
>
> Development version (i.e, git HEAD).
>
> Regards,
>