Comment # 5 on bug 1159956 from Dr. Werner Fink

(In reply to Thomas K�nig from comment #4)
> 
> The issue seems to have been some missing generated files after
> installation; possibly some post-generation scripts were not
> run correctly.

Indeed there had been always some users which reports about such
problems, but I was never able to reproduce this.  This is the
reason why there exists an option `force' for the update script.
The same update script is used in the %posttrans scriplets if
one of the tag files exist:

   /var/run/texlive/run-mktexlsr
   /var/run/texlive/run-hyphen
   /var/run/texlive/run-fmtutil.language
   /var/run/texlive/run-fmtutil
   /var/run/texlive/run-fmtutil.refresh
   /var/run/texlive/run-update

and those are touched in the various %postinstall and %postuninstall
scriptlets.  This mechanism makes sure that the update is only done
once in an update session. See, e.g.

  rpm -q --scripts texlive

> This may be due to the ordering of the packages I installed, or a
> more general phenomenon.  Is there anything else I can do to help debug
> this?

Only search for some log entries below /var/log/zypp/history and/or
/var/log/zypper.log