: can you please include the *exact* solrconfig.xml & schema.xml you are : using for coreA ... you've given us an overview of what you changed, but : that's not enough for anyone to actally try and reproduce your problem.
if it helps (since hte list doesn't allow attachments) feel free to open a bug in jira, and attach a zip file of your entire solr home dir showing hte problem. -Hoss http://www.lucidworks.com/