After merging coverage files, I get "Invalid ..."

I am using NCover 2.1.2.3433 x64. If seems that I can merge files for a while, but then at some point I get the error. I have parsed the XML and it appears to be correct XML.

RE: After merging coverage files, I get "Invalid ..."

Can you email a ziped copy of the coverage file to support?

What was the exact error?

Joe Feser