I have several WPM tests that bring up a page of XML/text and searches for a specific string. These tests were working fine on IE8. I then had a requirement to upgrade the browser to IE9 to support additional web tests that did not work on IE8. On IE9 my non-XML tests continue to work, but all the XML tests fail. If I play the recording it brings up the XML pages correctly; I can see the text string I want; BUT WPM fails to match the text. It does not say text not found, instead it says "playback failed: there has been an exception thrown during playback".
I tried building a new recording and it still fails out with the same error.