Freeswitch.xml.fsxml
Located under the {freeswitch_installation}/log/ directory. This file is the how the FreeSWITCH pre-processor compiles your {freeswitch_installation}/conf/* files together. This file is a great place to start when troubleshooting XML and/or configuration issues.
You could replace your freeswitch.xml file with this one if necessary for testing and troubleshooting.