On 5 Mar 2013, at 19:18 , philipp.gesang@alumni.uni-heidelberg.de wrote:

as you got no reply from the others, here?s what I can say:

1. Can you provide a complete, minimal non-working example that
  relies only on the images in tex/context/sample/* ?

2. Maybe your Luatex binary is not in sync with Context. The
  recently included Lua 5.2 is more rigorous with escape
  sequences than its predecessor:

Hi Philipp,

Thanks for your reply.

I have as yet not succeeded in making a non-working minimal example. So far they all ran smoothly with each of my whole collection of minimals, including the latest (= yesterday's) beta.

So I will have to look in some of the auxiliary files, setups etc. for the cause of my trouble.

The fact remains that the present ConTeXt mkiv is different from that of november and before in a way that is crucial for my project.

Thanks again. Best regards,

Robert Blackstone