pungi fails in the createiso stage

Hi list:

Been working on pungi quite a bit and while I was testing some stuff it 
showed some strange behaviour.  In my box it stops in the createiso 
stage when `mkisofs` is called.  The error messages states that there is 
no isolinux directory ( and when I go look for it where its suppose to 
be... its not there :)
To make sure that it was not what I had done I downloaded a new tar file 
and installed it in my box.  To my surprise it showed the same behavior.
I looked at pungi and the anaconda-runtime scripts which I suspect are 
the cause of all this.  To get a better look at things I stopped pungi 
just before executing the buildinstall command and executed it with the 
--debug option to see what came out.  A bunch of messages popped out ( I 
will list just a small portion):
/.../upd-instroot: line 989: /.../fixmtime.py: No such file or directory
/.../upd-instroot: line 989: /.../fixmtime.py: No such file or directory
cat: /.../lang-table*: No such file or directory
/.../upd-instroot: line 1011: cd: /.../locale: No such file or directory
These where the first ones.  There are more but I think the root of the 
problem is here.
I looked in the anaconda-runtime scripts for the bug with no success.  
Finally I changed pungies yum repository to point to a repository that I 
had  lying around for some time (the repository had 
anaconda-11.2.0.57-1.x86_64.rpm and 
anaconda-runtime-11.2.0.57-1.x86_64.rpm they were old versions ).  It 
worked like a charm.
FYI, the repository that I was using for my previous tests was 
"mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=rawhide&arch=x86_64";
So I diffed the upd-insroot from the 11.2.0.57-1.x86_64 version with the 
11.2.0.66-1.x86_64 one and IMHO found no change that would give the 
behavior that I'm experiencing.
Anybody else in this situation???
Comments greatly appreciated
Regards

--
Joel Andres Granados