Yep, that's what changed, that could be all there is to it. System Shock is also corect that the rules comes later, after system identification is complete.

If this doesn't help run through the interactive install and see other then the language, what questions get asked?

Note any question that does not already have a default answer which matches what you expect the automatic jumpstart to set it to, and that will tell you what is missing from sysidcfg.