On 21 nov. 2012, at 23:45, Aditya Mahajan <adityam@umich.edu> wrote:

[…]
Do these work with xits or cambria, i.e., is it a font or a context issue.

Hi Aditya,

The bug appears with Latin Modern, that is the default font in TeX.

With xits and palatino the example I sent works fine.

Best regards: OK