First of all I do have a ticket open on this, but it is still unresolved so I am reaching out to my IC folks.
Two months ago I realized I was unable to update the ciscorouter.xml file. If I update the xml via ESU message parsing fails for queries and reports. If I replace the updated xml with one from April and restart the envision services everything begins to function again. I have confirmed checksums with support and provided the entire folder for testing. It is my belief that my ES itself has some sort of corruption that is not easily determined by logs. Any ideas on what to try or look at? I have worked with this product for years and never seen this.